640129950

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{74869}}^1$

素因数の和:74906

約数の個数: 72

約数和(自身を含む): 1810356600

約数和(自身を除く): 1170226650

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 25, 30, 38, 45, 50, 57, 75, 90, 95, 114, 150, 171, 190, 225, 285, 342, 450, 475, 570, 855, 950, 1425, 1710, 2850, 4275, 8550, 74869, 149738, 224607, 374345, 449214, 673821, 748690, 1123035, 1347642, 1422511, 1871725, 2246070, 2845022, 3369105, 3743450, 4267533, 5615175, 6738210, 7112555, 8535066, 11230350, 12802599, 14225110, 16845525, 21337665, 25605198, 33691050, 35562775, 42675330, 64012995, 71125550, 106688325, 128025990, 213376650, 320064975, 640129950]

約数ペア:

[(1, 640129950), (2, 320064975), (3, 213376650), (5, 128025990), (6, 106688325), (9, 71125550), (10, 64012995), (15, 42675330), (18, 35562775), (19, 33691050), (25, 25605198), (30, 21337665), (38, 16845525), (45, 14225110), (50, 12802599), (57, 11230350), (75, 8535066), (90, 7112555), (95, 6738210), (114, 5615175), (150, 4267533), (171, 3743450), (190, 3369105), (225, 2845022), (285, 2246070), (342, 1871725), (450, 1422511), (475, 1347642), (570, 1123035), (855, 748690), (950, 673821), (1425, 449214), (1710, 374345), (2850, 224607), (4275, 149738), (8550, 74869)]