631509680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{1709}}^1$

素因数の和:1902

約数の個数: 80

約数和(自身を含む): 1526688000

約数和(自身を除く): 895178320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 149, 155, 248, 298, 310, 496, 596, 620, 745, 1192, 1240, 1490, 1709, 2384, 2480, 2980, 3418, 4619, 5960, 6836, 8545, 9238, 11920, 13672, 17090, 18476, 23095, 27344, 34180, 36952, 46190, 52979, 68360, 73904, 92380, 105958, 136720, 184760, 211916, 254641, 264895, 369520, 423832, 509282, 529790, 847664, 1018564, 1059580, 1273205, 2037128, 2119160, 2546410, 4074256, 4238320, 5092820, 7893871, 10185640, 15787742, 20371280, 31575484, 39469355, 63150968, 78938710, 126301936, 157877420, 315754840, 631509680]

約数ペア:

[(1, 631509680), (2, 315754840), (4, 157877420), (5, 126301936), (8, 78938710), (10, 63150968), (16, 39469355), (20, 31575484), (31, 20371280), (40, 15787742), (62, 10185640), (80, 7893871), (124, 5092820), (149, 4238320), (155, 4074256), (248, 2546410), (298, 2119160), (310, 2037128), (496, 1273205), (596, 1059580), (620, 1018564), (745, 847664), (1192, 529790), (1240, 509282), (1490, 423832), (1709, 369520), (2384, 264895), (2480, 254641), (2980, 211916), (3418, 184760), (4619, 136720), (5960, 105958), (6836, 92380), (8545, 73904), (9238, 68360), (11920, 52979), (13672, 46190), (17090, 36952), (18476, 34180), (23095, 27344)]