400655280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2143}}^1$

素因数の和:2219

約数の個数: 160

約数和(自身を含む): 1339914240

約数和(自身を除く): 939258960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 41, 48, 57, 60, 76, 80, 82, 95, 114, 120, 123, 152, 164, 190, 205, 228, 240, 246, 285, 304, 328, 380, 410, 456, 492, 570, 615, 656, 760, 779, 820, 912, 984, 1140, 1230, 1520, 1558, 1640, 1968, 2143, 2280, 2337, 2460, 3116, 3280, 3895, 4286, 4560, 4674, 4920, 6232, 6429, 7790, 8572, 9348, 9840, 10715, 11685, 12464, 12858, 15580, 17144, 18696, 21430, 23370, 25716, 31160, 32145, 34288, 37392, 40717, 42860, 46740, 51432, 62320, 64290, 81434, 85720, 87863, 93480, 102864, 122151, 128580, 162868, 171440, 175726, 186960, 203585, 244302, 257160, 263589, 325736, 351452, 407170, 439315, 488604, 514320, 527178, 610755, 651472, 702904, 814340, 878630, 977208, 1054356, 1221510, 1317945, 1405808, 1628680, 1669397, 1757260, 1954416, 2108712, 2443020, 2635890, 3257360, 3338794, 3514520, 4217424, 4886040, 5008191, 5271780, 6677588, 7029040, 8346985, 9772080, 10016382, 10543560, 13355176, 16693970, 20032764, 21087120, 25040955, 26710352, 33387940, 40065528, 50081910, 66775880, 80131056, 100163820, 133551760, 200327640, 400655280]

約数ペア:

[(1, 400655280), (2, 200327640), (3, 133551760), (4, 100163820), (5, 80131056), (6, 66775880), (8, 50081910), (10, 40065528), (12, 33387940), (15, 26710352), (16, 25040955), (19, 21087120), (20, 20032764), (24, 16693970), (30, 13355176), (38, 10543560), (40, 10016382), (41, 9772080), (48, 8346985), (57, 7029040), (60, 6677588), (76, 5271780), (80, 5008191), (82, 4886040), (95, 4217424), (114, 3514520), (120, 3338794), (123, 3257360), (152, 2635890), (164, 2443020), (190, 2108712), (205, 1954416), (228, 1757260), (240, 1669397), (246, 1628680), (285, 1405808), (304, 1317945), (328, 1221510), (380, 1054356), (410, 977208), (456, 878630), (492, 814340), (570, 702904), (615, 651472), (656, 610755), (760, 527178), (779, 514320), (820, 488604), (912, 439315), (984, 407170), (1140, 351452), (1230, 325736), (1520, 263589), (1558, 257160), (1640, 244302), (1968, 203585), (2143, 186960), (2280, 175726), (2337, 171440), (2460, 162868), (3116, 128580), (3280, 122151), (3895, 102864), (4286, 93480), (4560, 87863), (4674, 85720), (4920, 81434), (6232, 64290), (6429, 62320), (7790, 51432), (8572, 46740), (9348, 42860), (9840, 40717), (10715, 37392), (11685, 34288), (12464, 32145), (12858, 31160), (15580, 25716), (17144, 23370), (18696, 21430)]