19728686320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{647}}^1\times {\mathrm{3203}}^1$

素因数の和:3887

約数の個数: 160

約数和(自身を含む): 55608726528

約数和(自身を除く): 35880040208

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 238, 272, 280, 340, 476, 560, 595, 647, 680, 952, 1190, 1294, 1360, 1904, 2380, 2588, 3203, 3235, 4529, 4760, 5176, 6406, 6470, 9058, 9520, 10352, 10999, 12812, 12940, 16015, 18116, 21998, 22421, 22645, 25624, 25880, 32030, 36232, 43996, 44842, 45290, 51248, 51760, 54451, 54995, 64060, 72464, 76993, 87992, 89684, 90580, 108902, 109990, 112105, 128120, 153986, 175984, 179368, 181160, 217804, 219980, 224210, 256240, 272255, 307972, 358736, 362320, 381157, 384965, 435608, 439960, 448420, 544510, 615944, 762314, 769930, 871216, 879920, 896840, 1089020, 1231888, 1524628, 1539860, 1793680, 1905785, 2072341, 2178040, 3049256, 3079720, 3811570, 4144682, 4356080, 6098512, 6159440, 7623140, 8289364, 10361705, 14506387, 15246280, 16578728, 20723410, 29012774, 30492560, 33157456, 35229797, 41446820, 58025548, 70459594, 72531935, 82893640, 116051096, 140919188, 145063870, 165787280, 176148985, 232102192, 246608579, 281838376, 290127740, 352297970, 493217158, 563676752, 580255480, 704595940, 986434316, 1160510960, 1233042895, 1409191880, 1972868632, 2466085790, 2818383760, 3945737264, 4932171580, 9864343160, 19728686320]

約数ペア:

[(1, 19728686320), (2, 9864343160), (4, 4932171580), (5, 3945737264), (7, 2818383760), (8, 2466085790), (10, 1972868632), (14, 1409191880), (16, 1233042895), (17, 1160510960), (20, 986434316), (28, 704595940), (34, 580255480), (35, 563676752), (40, 493217158), (56, 352297970), (68, 290127740), (70, 281838376), (80, 246608579), (85, 232102192), (112, 176148985), (119, 165787280), (136, 145063870), (140, 140919188), (170, 116051096), (238, 82893640), (272, 72531935), (280, 70459594), (340, 58025548), (476, 41446820), (560, 35229797), (595, 33157456), (647, 30492560), (680, 29012774), (952, 20723410), (1190, 16578728), (1294, 15246280), (1360, 14506387), (1904, 10361705), (2380, 8289364), (2588, 7623140), (3203, 6159440), (3235, 6098512), (4529, 4356080), (4760, 4144682), (5176, 3811570), (6406, 3079720), (6470, 3049256), (9058, 2178040), (9520, 2072341), (10352, 1905785), (10999, 1793680), (12812, 1539860), (12940, 1524628), (16015, 1231888), (18116, 1089020), (21998, 896840), (22421, 879920), (22645, 871216), (25624, 769930), (25880, 762314), (32030, 615944), (36232, 544510), (43996, 448420), (44842, 439960), (45290, 435608), (51248, 384965), (51760, 381157), (54451, 362320), (54995, 358736), (64060, 307972), (72464, 272255), (76993, 256240), (87992, 224210), (89684, 219980), (90580, 217804), (108902, 181160), (109990, 179368), (112105, 175984), (128120, 153986)]