640341616

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{5581}}^1$

素因数の和:5761

約数の個数: 40

約数和(自身を含む): 1270820448

約数和(自身を除く): 630478832

約数列:

[1, 2, 4, 8, 16, 71, 101, 142, 202, 284, 404, 568, 808, 1136, 1616, 5581, 7171, 11162, 14342, 22324, 28684, 44648, 57368, 89296, 114736, 396251, 563681, 792502, 1127362, 1585004, 2254724, 3170008, 4509448, 6340016, 9018896, 40021351, 80042702, 160085404, 320170808, 640341616]

約数ペア:

[(1, 640341616), (2, 320170808), (4, 160085404), (8, 80042702), (16, 40021351), (71, 9018896), (101, 6340016), (142, 4509448), (202, 3170008), (284, 2254724), (404, 1585004), (568, 1127362), (808, 792502), (1136, 563681), (1616, 396251), (5581, 114736), (7171, 89296), (11162, 57368), (14342, 44648), (22324, 28684)]