640353960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{5507}}^1$

素因数の和:5560

約数の個数: 192

約数和(自身を含む): 2319969600

約数和(自身を除く): 1679615640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 19, 20, 24, 30, 34, 36, 38, 40, 45, 51, 57, 60, 68, 72, 76, 85, 90, 95, 102, 114, 120, 136, 152, 153, 170, 171, 180, 190, 204, 228, 255, 285, 306, 323, 340, 342, 360, 380, 408, 456, 510, 570, 612, 646, 680, 684, 760, 765, 855, 969, 1020, 1140, 1224, 1292, 1368, 1530, 1615, 1710, 1938, 2040, 2280, 2584, 2907, 3060, 3230, 3420, 3876, 4845, 5507, 5814, 6120, 6460, 6840, 7752, 9690, 11014, 11628, 12920, 14535, 16521, 19380, 22028, 23256, 27535, 29070, 33042, 38760, 44056, 49563, 55070, 58140, 66084, 82605, 93619, 99126, 104633, 110140, 116280, 132168, 165210, 187238, 198252, 209266, 220280, 247815, 280857, 313899, 330420, 374476, 396504, 418532, 468095, 495630, 523165, 561714, 627798, 660840, 748952, 837064, 842571, 936190, 941697, 991260, 1046330, 1123428, 1255596, 1404285, 1569495, 1685142, 1778761, 1872380, 1883394, 1982520, 2092660, 2246856, 2511192, 2808570, 3138990, 3370284, 3557522, 3744760, 3766788, 4185320, 4212855, 4708485, 5336283, 5617140, 6277980, 6740568, 7115044, 7533576, 8425710, 8893805, 9416970, 10672566, 11234280, 12555960, 14230088, 16008849, 16851420, 17787610, 18833940, 21345132, 26681415, 32017698, 33702840, 35575220, 37667880, 42690264, 53362830, 64035396, 71150440, 80044245, 106725660, 128070792, 160088490, 213451320, 320176980, 640353960]

約数ペア:

[(1, 640353960), (2, 320176980), (3, 213451320), (4, 160088490), (5, 128070792), (6, 106725660), (8, 80044245), (9, 71150440), (10, 64035396), (12, 53362830), (15, 42690264), (17, 37667880), (18, 35575220), (19, 33702840), (20, 32017698), (24, 26681415), (30, 21345132), (34, 18833940), (36, 17787610), (38, 16851420), (40, 16008849), (45, 14230088), (51, 12555960), (57, 11234280), (60, 10672566), (68, 9416970), (72, 8893805), (76, 8425710), (85, 7533576), (90, 7115044), (95, 6740568), (102, 6277980), (114, 5617140), (120, 5336283), (136, 4708485), (152, 4212855), (153, 4185320), (170, 3766788), (171, 3744760), (180, 3557522), (190, 3370284), (204, 3138990), (228, 2808570), (255, 2511192), (285, 2246856), (306, 2092660), (323, 1982520), (340, 1883394), (342, 1872380), (360, 1778761), (380, 1685142), (408, 1569495), (456, 1404285), (510, 1255596), (570, 1123428), (612, 1046330), (646, 991260), (680, 941697), (684, 936190), (760, 842571), (765, 837064), (855, 748952), (969, 660840), (1020, 627798), (1140, 561714), (1224, 523165), (1292, 495630), (1368, 468095), (1530, 418532), (1615, 396504), (1710, 374476), (1938, 330420), (2040, 313899), (2280, 280857), (2584, 247815), (2907, 220280), (3060, 209266), (3230, 198252), (3420, 187238), (3876, 165210), (4845, 132168), (5507, 116280), (5814, 110140), (6120, 104633), (6460, 99126), (6840, 93619), (7752, 82605), (9690, 66084), (11014, 58140), (11628, 55070), (12920, 49563), (14535, 44056), (16521, 38760), (19380, 33042), (22028, 29070), (23256, 27535)]