256513680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1103}}^1$

素因数の和:1158

約数の個数: 240

約数和(自身を含む): 961009920

約数和(自身を除く): 704496240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 19, 20, 24, 30, 34, 36, 38, 40, 45, 48, 51, 57, 60, 68, 72, 76, 80, 85, 90, 95, 102, 114, 120, 136, 144, 152, 153, 170, 171, 180, 190, 204, 228, 240, 255, 272, 285, 304, 306, 323, 340, 342, 360, 380, 408, 456, 510, 570, 612, 646, 680, 684, 720, 760, 765, 816, 855, 912, 969, 1020, 1103, 1140, 1224, 1292, 1360, 1368, 1520, 1530, 1615, 1710, 1938, 2040, 2206, 2280, 2448, 2584, 2736, 2907, 3060, 3230, 3309, 3420, 3876, 4080, 4412, 4560, 4845, 5168, 5515, 5814, 6120, 6460, 6618, 6840, 7752, 8824, 9690, 9927, 11030, 11628, 12240, 12920, 13236, 13680, 14535, 15504, 16545, 17648, 18751, 19380, 19854, 20957, 22060, 23256, 25840, 26472, 29070, 33090, 37502, 38760, 39708, 41914, 44120, 46512, 49635, 52944, 56253, 58140, 62871, 66180, 75004, 77520, 79416, 83828, 88240, 93755, 99270, 104785, 112506, 116280, 125742, 132360, 150008, 158832, 167656, 168759, 187510, 188613, 198540, 209570, 225012, 232560, 251484, 264720, 281265, 300016, 314355, 335312, 337518, 356269, 375020, 377226, 397080, 419140, 450024, 502968, 562530, 628710, 675036, 712538, 750040, 754452, 794160, 838280, 843795, 900048, 943065, 1005936, 1068807, 1125060, 1257420, 1350072, 1425076, 1500080, 1508904, 1676560, 1687590, 1781345, 1886130, 2137614, 2250120, 2514840, 2700144, 2850152, 3017808, 3206421, 3375180, 3562690, 3772260, 4275228, 4500240, 5029680, 5344035, 5700304, 6412842, 6750360, 7125380, 7544520, 8550456, 10688070, 12825684, 13500720, 14250760, 15089040, 16032105, 17100912, 21376140, 25651368, 28501520, 32064210, 42752280, 51302736, 64128420, 85504560, 128256840, 256513680]

約数ペア:

[(1, 256513680), (2, 128256840), (3, 85504560), (4, 64128420), (5, 51302736), (6, 42752280), (8, 32064210), (9, 28501520), (10, 25651368), (12, 21376140), (15, 17100912), (16, 16032105), (17, 15089040), (18, 14250760), (19, 13500720), (20, 12825684), (24, 10688070), (30, 8550456), (34, 7544520), (36, 7125380), (38, 6750360), (40, 6412842), (45, 5700304), (48, 5344035), (51, 5029680), (57, 4500240), (60, 4275228), (68, 3772260), (72, 3562690), (76, 3375180), (80, 3206421), (85, 3017808), (90, 2850152), (95, 2700144), (102, 2514840), (114, 2250120), (120, 2137614), (136, 1886130), (144, 1781345), (152, 1687590), (153, 1676560), (170, 1508904), (171, 1500080), (180, 1425076), (190, 1350072), (204, 1257420), (228, 1125060), (240, 1068807), (255, 1005936), (272, 943065), (285, 900048), (304, 843795), (306, 838280), (323, 794160), (340, 754452), (342, 750040), (360, 712538), (380, 675036), (408, 628710), (456, 562530), (510, 502968), (570, 450024), (612, 419140), (646, 397080), (680, 377226), (684, 375020), (720, 356269), (760, 337518), (765, 335312), (816, 314355), (855, 300016), (912, 281265), (969, 264720), (1020, 251484), (1103, 232560), (1140, 225012), (1224, 209570), (1292, 198540), (1360, 188613), (1368, 187510), (1520, 168759), (1530, 167656), (1615, 158832), (1710, 150008), (1938, 132360), (2040, 125742), (2206, 116280), (2280, 112506), (2448, 104785), (2584, 99270), (2736, 93755), (2907, 88240), (3060, 83828), (3230, 79416), (3309, 77520), (3420, 75004), (3876, 66180), (4080, 62871), (4412, 58140), (4560, 56253), (4845, 52944), (5168, 49635), (5515, 46512), (5814, 44120), (6120, 41914), (6460, 39708), (6618, 38760), (6840, 37502), (7752, 33090), (8824, 29070), (9690, 26472), (9927, 25840), (11030, 23256), (11628, 22060), (12240, 20957), (12920, 19854), (13236, 19380), (13680, 18751), (14535, 17648), (15504, 16545)]