640855560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{9067}}^1$

素因数の和:9131

約数の個数: 128

約数和(自身を含む): 2089267200

約数和(自身を除く): 1448411640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 31, 38, 40, 57, 60, 62, 76, 93, 95, 114, 120, 124, 152, 155, 186, 190, 228, 248, 285, 310, 372, 380, 456, 465, 570, 589, 620, 744, 760, 930, 1140, 1178, 1240, 1767, 1860, 2280, 2356, 2945, 3534, 3720, 4712, 5890, 7068, 8835, 9067, 11780, 14136, 17670, 18134, 23560, 27201, 35340, 36268, 45335, 54402, 70680, 72536, 90670, 108804, 136005, 172273, 181340, 217608, 272010, 281077, 344546, 362680, 516819, 544020, 562154, 689092, 843231, 861365, 1033638, 1088040, 1124308, 1378184, 1405385, 1686462, 1722730, 2067276, 2248616, 2584095, 2810770, 3372924, 3445460, 4134552, 4216155, 5168190, 5340463, 5621540, 6745848, 6890920, 8432310, 10336380, 10680926, 11243080, 16021389, 16864620, 20672760, 21361852, 26702315, 32042778, 33729240, 42723704, 53404630, 64085556, 80106945, 106809260, 128171112, 160213890, 213618520, 320427780, 640855560]

約数ペア:

[(1, 640855560), (2, 320427780), (3, 213618520), (4, 160213890), (5, 128171112), (6, 106809260), (8, 80106945), (10, 64085556), (12, 53404630), (15, 42723704), (19, 33729240), (20, 32042778), (24, 26702315), (30, 21361852), (31, 20672760), (38, 16864620), (40, 16021389), (57, 11243080), (60, 10680926), (62, 10336380), (76, 8432310), (93, 6890920), (95, 6745848), (114, 5621540), (120, 5340463), (124, 5168190), (152, 4216155), (155, 4134552), (186, 3445460), (190, 3372924), (228, 2810770), (248, 2584095), (285, 2248616), (310, 2067276), (372, 1722730), (380, 1686462), (456, 1405385), (465, 1378184), (570, 1124308), (589, 1088040), (620, 1033638), (744, 861365), (760, 843231), (930, 689092), (1140, 562154), (1178, 544020), (1240, 516819), (1767, 362680), (1860, 344546), (2280, 281077), (2356, 272010), (2945, 217608), (3534, 181340), (3720, 172273), (4712, 136005), (5890, 108804), (7068, 90670), (8835, 72536), (9067, 70680), (11780, 54402), (14136, 45335), (17670, 36268), (18134, 35340), (23560, 27201)]