20270640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:191

約数の個数: 160

約数和(自身を含む): 69370560

約数和(自身を除く): 49099920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 73, 78, 80, 89, 104, 120, 130, 146, 156, 178, 195, 208, 219, 240, 260, 267, 292, 312, 356, 365, 390, 438, 445, 520, 534, 584, 624, 712, 730, 780, 876, 890, 949, 1040, 1068, 1095, 1157, 1168, 1335, 1424, 1460, 1560, 1752, 1780, 1898, 2136, 2190, 2314, 2670, 2847, 2920, 3120, 3471, 3504, 3560, 3796, 4272, 4380, 4628, 4745, 5340, 5694, 5785, 5840, 6497, 6942, 7120, 7592, 8760, 9256, 9490, 10680, 11388, 11570, 12994, 13884, 14235, 15184, 17355, 17520, 18512, 18980, 19491, 21360, 22776, 23140, 25988, 27768, 28470, 32485, 34710, 37960, 38982, 45552, 46280, 51976, 55536, 56940, 64970, 69420, 75920, 77964, 84461, 92560, 97455, 103952, 113880, 129940, 138840, 155928, 168922, 194910, 227760, 253383, 259880, 277680, 311856, 337844, 389820, 422305, 506766, 519760, 675688, 779640, 844610, 1013532, 1266915, 1351376, 1559280, 1689220, 2027064, 2533830, 3378440, 4054128, 5067660, 6756880, 10135320, 20270640]

約数ペア:

[(1, 20270640), (2, 10135320), (3, 6756880), (4, 5067660), (5, 4054128), (6, 3378440), (8, 2533830), (10, 2027064), (12, 1689220), (13, 1559280), (15, 1351376), (16, 1266915), (20, 1013532), (24, 844610), (26, 779640), (30, 675688), (39, 519760), (40, 506766), (48, 422305), (52, 389820), (60, 337844), (65, 311856), (73, 277680), (78, 259880), (80, 253383), (89, 227760), (104, 194910), (120, 168922), (130, 155928), (146, 138840), (156, 129940), (178, 113880), (195, 103952), (208, 97455), (219, 92560), (240, 84461), (260, 77964), (267, 75920), (292, 69420), (312, 64970), (356, 56940), (365, 55536), (390, 51976), (438, 46280), (445, 45552), (520, 38982), (534, 37960), (584, 34710), (624, 32485), (712, 28470), (730, 27768), (780, 25988), (876, 23140), (890, 22776), (949, 21360), (1040, 19491), (1068, 18980), (1095, 18512), (1157, 17520), (1168, 17355), (1335, 15184), (1424, 14235), (1460, 13884), (1560, 12994), (1752, 11570), (1780, 11388), (1898, 10680), (2136, 9490), (2190, 9256), (2314, 8760), (2670, 7592), (2847, 7120), (2920, 6942), (3120, 6497), (3471, 5840), (3504, 5785), (3560, 5694), (3796, 5340), (4272, 4745), (4380, 4628)]