64490180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 154224000

約数和(自身を除く): 89733820

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 67, 68, 76, 85, 95, 134, 149, 170, 190, 268, 298, 323, 335, 340, 380, 596, 646, 670, 745, 1139, 1273, 1292, 1340, 1490, 1615, 2278, 2533, 2546, 2831, 2980, 3230, 4556, 5066, 5092, 5662, 5695, 6365, 6460, 9983, 10132, 11324, 11390, 12665, 12730, 14155, 19966, 21641, 22780, 25330, 25460, 28310, 39932, 43282, 48127, 49915, 50660, 56620, 86564, 96254, 99830, 108205, 169711, 189677, 192508, 199660, 216410, 240635, 339422, 379354, 432820, 481270, 678844, 758708, 848555, 948385, 962540, 1697110, 1896770, 3224509, 3394220, 3793540, 6449018, 12898036, 16122545, 32245090, 64490180]

約数ペア:

[(1, 64490180), (2, 32245090), (4, 16122545), (5, 12898036), (10, 6449018), (17, 3793540), (19, 3394220), (20, 3224509), (34, 1896770), (38, 1697110), (67, 962540), (68, 948385), (76, 848555), (85, 758708), (95, 678844), (134, 481270), (149, 432820), (170, 379354), (190, 339422), (268, 240635), (298, 216410), (323, 199660), (335, 192508), (340, 189677), (380, 169711), (596, 108205), (646, 99830), (670, 96254), (745, 86564), (1139, 56620), (1273, 50660), (1292, 49915), (1340, 48127), (1490, 43282), (1615, 39932), (2278, 28310), (2533, 25460), (2546, 25330), (2831, 22780), (2980, 21641), (3230, 19966), (4556, 14155), (5066, 12730), (5092, 12665), (5662, 11390), (5695, 11324), (6365, 10132), (6460, 9983)]