20326881536

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{2699}}^1$

素因数の和:2832

約数の個数: 144

約数和(自身を含む): 45739814400

約数和(自身を除く): 25412932864

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 73, 104, 124, 128, 146, 208, 248, 256, 292, 403, 416, 496, 584, 806, 832, 949, 992, 1168, 1612, 1664, 1898, 1984, 2263, 2336, 2699, 3224, 3328, 3796, 3968, 4526, 4672, 5398, 6448, 7592, 7936, 9052, 9344, 10796, 12896, 15184, 18104, 18688, 21592, 25792, 29419, 30368, 35087, 36208, 43184, 51584, 58838, 60736, 70174, 72416, 83669, 86368, 103168, 117676, 121472, 140348, 144832, 167338, 172736, 197027, 235352, 242944, 280696, 289664, 334676, 345472, 394054, 470704, 561392, 579328, 669352, 690944, 788108, 941408, 1087697, 1122784, 1338704, 1576216, 1882816, 2175394, 2245568, 2561351, 2677408, 3152432, 3765632, 4350788, 4491136, 5122702, 5354816, 6107837, 6304864, 7531264, 8701576, 8982272, 10245404, 10709632, 12215674, 12609728, 17403152, 20490808, 21419264, 24431348, 25219456, 34806304, 40981616, 48862696, 50438912, 69612608, 79401881, 81963232, 97725392, 139225216, 158803762, 163926464, 195450784, 278450432, 317607524, 327852928, 390901568, 635215048, 655705856, 781803136, 1270430096, 1563606272, 2540860192, 5081720384, 10163440768, 20326881536]

約数ペア:

[(1, 20326881536), (2, 10163440768), (4, 5081720384), (8, 2540860192), (13, 1563606272), (16, 1270430096), (26, 781803136), (31, 655705856), (32, 635215048), (52, 390901568), (62, 327852928), (64, 317607524), (73, 278450432), (104, 195450784), (124, 163926464), (128, 158803762), (146, 139225216), (208, 97725392), (248, 81963232), (256, 79401881), (292, 69612608), (403, 50438912), (416, 48862696), (496, 40981616), (584, 34806304), (806, 25219456), (832, 24431348), (949, 21419264), (992, 20490808), (1168, 17403152), (1612, 12609728), (1664, 12215674), (1898, 10709632), (1984, 10245404), (2263, 8982272), (2336, 8701576), (2699, 7531264), (3224, 6304864), (3328, 6107837), (3796, 5354816), (3968, 5122702), (4526, 4491136), (4672, 4350788), (5398, 3765632), (6448, 3152432), (7592, 2677408), (7936, 2561351), (9052, 2245568), (9344, 2175394), (10796, 1882816), (12896, 1576216), (15184, 1338704), (18104, 1122784), (18688, 1087697), (21592, 941408), (25792, 788108), (29419, 690944), (30368, 669352), (35087, 579328), (36208, 561392), (43184, 470704), (51584, 394054), (58838, 345472), (60736, 334676), (70174, 289664), (72416, 280696), (83669, 242944), (86368, 235352), (103168, 197027), (117676, 172736), (121472, 167338), (140348, 144832)]