257077560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{487}}^1$

素因数の和:637

約数の個数: 128

約数和(自身を含む): 796884480

約数和(自身を除く): 539806920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 53, 60, 83, 106, 120, 159, 166, 212, 249, 265, 318, 332, 415, 424, 487, 498, 530, 636, 664, 795, 830, 974, 996, 1060, 1245, 1272, 1461, 1590, 1660, 1948, 1992, 2120, 2435, 2490, 2922, 3180, 3320, 3896, 4399, 4870, 4980, 5844, 6360, 7305, 8798, 9740, 9960, 11688, 13197, 14610, 17596, 19480, 21995, 25811, 26394, 29220, 35192, 40421, 43990, 51622, 52788, 58440, 65985, 77433, 80842, 87980, 103244, 105576, 121263, 129055, 131970, 154866, 161684, 175960, 202105, 206488, 242526, 258110, 263940, 309732, 323368, 387165, 404210, 485052, 516220, 527880, 606315, 619464, 774330, 808420, 970104, 1032440, 1212630, 1548660, 1616840, 2142313, 2425260, 3097320, 4284626, 4850520, 6426939, 8569252, 10711565, 12853878, 17138504, 21423130, 25707756, 32134695, 42846260, 51415512, 64269390, 85692520, 128538780, 257077560]

約数ペア:

[(1, 257077560), (2, 128538780), (3, 85692520), (4, 64269390), (5, 51415512), (6, 42846260), (8, 32134695), (10, 25707756), (12, 21423130), (15, 17138504), (20, 12853878), (24, 10711565), (30, 8569252), (40, 6426939), (53, 4850520), (60, 4284626), (83, 3097320), (106, 2425260), (120, 2142313), (159, 1616840), (166, 1548660), (212, 1212630), (249, 1032440), (265, 970104), (318, 808420), (332, 774330), (415, 619464), (424, 606315), (487, 527880), (498, 516220), (530, 485052), (636, 404210), (664, 387165), (795, 323368), (830, 309732), (974, 263940), (996, 258110), (1060, 242526), (1245, 206488), (1272, 202105), (1461, 175960), (1590, 161684), (1660, 154866), (1948, 131970), (1992, 129055), (2120, 121263), (2435, 105576), (2490, 103244), (2922, 87980), (3180, 80842), (3320, 77433), (3896, 65985), (4399, 58440), (4870, 52788), (4980, 51622), (5844, 43990), (6360, 40421), (7305, 35192), (8798, 29220), (9740, 26394), (9960, 25811), (11688, 21995), (13197, 19480), (14610, 17596)]