1985778120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{397}}^1\times {\mathrm{571}}^1$

素因数の和:1055

約数の個数: 128

約数和(自身を含む): 6064755840

約数和(自身を除く): 4078977720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 73, 120, 146, 219, 292, 365, 397, 438, 571, 584, 730, 794, 876, 1095, 1142, 1191, 1460, 1588, 1713, 1752, 1985, 2190, 2284, 2382, 2855, 2920, 3176, 3426, 3970, 4380, 4568, 4764, 5710, 5955, 6852, 7940, 8565, 8760, 9528, 11420, 11910, 13704, 15880, 17130, 22840, 23820, 28981, 34260, 41683, 47640, 57962, 68520, 83366, 86943, 115924, 125049, 144905, 166732, 173886, 208415, 226687, 231848, 250098, 289810, 333464, 347772, 416830, 434715, 453374, 500196, 579620, 625245, 680061, 695544, 833660, 869430, 906748, 1000392, 1133435, 1159240, 1250490, 1360122, 1667320, 1738860, 1813496, 2266870, 2500980, 2720244, 3400305, 3477720, 4533740, 5001960, 5440488, 6800610, 9067480, 13601220, 16548151, 27202440, 33096302, 49644453, 66192604, 82740755, 99288906, 132385208, 165481510, 198577812, 248222265, 330963020, 397155624, 496444530, 661926040, 992889060, 1985778120]

約数ペア:

[(1, 1985778120), (2, 992889060), (3, 661926040), (4, 496444530), (5, 397155624), (6, 330963020), (8, 248222265), (10, 198577812), (12, 165481510), (15, 132385208), (20, 99288906), (24, 82740755), (30, 66192604), (40, 49644453), (60, 33096302), (73, 27202440), (120, 16548151), (146, 13601220), (219, 9067480), (292, 6800610), (365, 5440488), (397, 5001960), (438, 4533740), (571, 3477720), (584, 3400305), (730, 2720244), (794, 2500980), (876, 2266870), (1095, 1813496), (1142, 1738860), (1191, 1667320), (1460, 1360122), (1588, 1250490), (1713, 1159240), (1752, 1133435), (1985, 1000392), (2190, 906748), (2284, 869430), (2382, 833660), (2855, 695544), (2920, 680061), (3176, 625245), (3426, 579620), (3970, 500196), (4380, 453374), (4568, 434715), (4764, 416830), (5710, 347772), (5955, 333464), (6852, 289810), (7940, 250098), (8565, 231848), (8760, 226687), (9528, 208415), (11420, 173886), (11910, 166732), (13704, 144905), (15880, 125049), (17130, 115924), (22840, 86943), (23820, 83366), (28981, 68520), (34260, 57962), (41683, 47640)]