644790248

素因数分解:

$2^3\times {\mathrm{199}}^1\times {\mathrm{593}}^1\times {\mathrm{683}}^1$

素因数の和:1481

約数の個数: 32

約数和(自身を含む): 1218888000

約数和(自身を除く): 574097752

約数列:

[1, 2, 4, 8, 199, 398, 593, 683, 796, 1186, 1366, 1592, 2372, 2732, 4744, 5464, 118007, 135917, 236014, 271834, 405019, 472028, 543668, 810038, 944056, 1087336, 1620076, 3240152, 80598781, 161197562, 322395124, 644790248]

約数ペア:

[(1, 644790248), (2, 322395124), (4, 161197562), (8, 80598781), (199, 3240152), (398, 1620076), (593, 1087336), (683, 944056), (796, 810038), (1186, 543668), (1366, 472028), (1592, 405019), (2372, 271834), (2732, 236014), (4744, 135917), (5464, 118007)]