640450350

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{83719}}^1$

素因数の和:83754

約数の個数: 72

約数和(自身を含む): 1821914640

約数和(自身を除く): 1181464290

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 25, 30, 34, 45, 50, 51, 75, 85, 90, 102, 150, 153, 170, 225, 255, 306, 425, 450, 510, 765, 850, 1275, 1530, 2550, 3825, 7650, 83719, 167438, 251157, 418595, 502314, 753471, 837190, 1255785, 1423223, 1506942, 2092975, 2511570, 2846446, 3767355, 4185950, 4269669, 6278925, 7116115, 7534710, 8539338, 12557850, 12809007, 14232230, 18836775, 21348345, 25618014, 35580575, 37673550, 42696690, 64045035, 71161150, 106741725, 128090070, 213483450, 320225175, 640450350]

約数ペア:

[(1, 640450350), (2, 320225175), (3, 213483450), (5, 128090070), (6, 106741725), (9, 71161150), (10, 64045035), (15, 42696690), (17, 37673550), (18, 35580575), (25, 25618014), (30, 21348345), (34, 18836775), (45, 14232230), (50, 12809007), (51, 12557850), (75, 8539338), (85, 7534710), (90, 7116115), (102, 6278925), (150, 4269669), (153, 4185950), (170, 3767355), (225, 2846446), (255, 2511570), (306, 2092975), (425, 1506942), (450, 1423223), (510, 1255785), (765, 837190), (850, 753471), (1275, 502314), (1530, 418595), (2550, 251157), (3825, 167438), (7650, 83719)]