257278300

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{557}}^1$

素因数の和:751

約数の個数: 72

約数和(自身を含む): 581212800

約数和(自身を除く): 323934500

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 149, 155, 298, 310, 557, 596, 620, 745, 775, 1114, 1490, 1550, 2228, 2785, 2980, 3100, 3725, 4619, 5570, 7450, 9238, 11140, 13925, 14900, 17267, 18476, 23095, 27850, 34534, 46190, 55700, 69068, 82993, 86335, 92380, 115475, 165986, 172670, 230950, 331972, 345340, 414965, 431675, 461900, 829930, 863350, 1659860, 1726700, 2074825, 2572783, 4149650, 5145566, 8299300, 10291132, 12863915, 25727830, 51455660, 64319575, 128639150, 257278300]

約数ペア:

[(1, 257278300), (2, 128639150), (4, 64319575), (5, 51455660), (10, 25727830), (20, 12863915), (25, 10291132), (31, 8299300), (50, 5145566), (62, 4149650), (100, 2572783), (124, 2074825), (149, 1726700), (155, 1659860), (298, 863350), (310, 829930), (557, 461900), (596, 431675), (620, 414965), (745, 345340), (775, 331972), (1114, 230950), (1490, 172670), (1550, 165986), (2228, 115475), (2785, 92380), (2980, 86335), (3100, 82993), (3725, 69068), (4619, 55700), (5570, 46190), (7450, 34534), (9238, 27850), (11140, 23095), (13925, 18476), (14900, 17267)]