156780280

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1\times {\mathrm{257}}^1$

素因数の和:520

約数の個数: 64

約数和(自身を含む): 360002880

約数和(自身を除く): 203222600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 151, 202, 257, 302, 404, 505, 514, 604, 755, 808, 1010, 1028, 1208, 1285, 1510, 2020, 2056, 2570, 3020, 4040, 5140, 6040, 10280, 15251, 25957, 30502, 38807, 51914, 61004, 76255, 77614, 103828, 122008, 129785, 152510, 155228, 194035, 207656, 259570, 305020, 310456, 388070, 519140, 610040, 776140, 1038280, 1552280, 3919507, 7839014, 15678028, 19597535, 31356056, 39195070, 78390140, 156780280]

約数ペア:

[(1, 156780280), (2, 78390140), (4, 39195070), (5, 31356056), (8, 19597535), (10, 15678028), (20, 7839014), (40, 3919507), (101, 1552280), (151, 1038280), (202, 776140), (257, 610040), (302, 519140), (404, 388070), (505, 310456), (514, 305020), (604, 259570), (755, 207656), (808, 194035), (1010, 155228), (1028, 152510), (1208, 129785), (1285, 122008), (1510, 103828), (2020, 77614), (2056, 76255), (2570, 61004), (3020, 51914), (4040, 38807), (5140, 30502), (6040, 25957), (10280, 15251)]