20156164912

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{601}}^1$

素因数の和:871

約数の個数: 120

約数和(自身を含む): 43167445440

約数和(自身を除く): 23011280528

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 79, 104, 157, 158, 169, 208, 314, 316, 338, 601, 628, 632, 676, 1027, 1202, 1256, 1264, 1352, 2041, 2054, 2404, 2512, 2704, 4082, 4108, 4808, 7813, 8164, 8216, 9616, 12403, 13351, 15626, 16328, 16432, 24806, 26533, 26702, 31252, 32656, 47479, 49612, 53066, 53404, 62504, 94357, 94958, 99224, 101569, 106132, 106808, 125008, 161239, 188714, 189916, 198448, 203138, 212264, 213616, 322478, 377428, 379832, 406276, 424528, 617227, 644956, 754856, 759664, 812552, 1226641, 1234454, 1289912, 1509712, 1625104, 2096107, 2453282, 2468908, 2579824, 4192214, 4906564, 4937816, 7454203, 8023951, 8384428, 9813128, 9875632, 14908406, 15946333, 16047902, 16768856, 19626256, 29816812, 31892666, 32095804, 33537712, 59633624, 63785332, 64191608, 96904639, 119267248, 127570664, 128383216, 193809278, 255141328, 387618556, 775237112, 1259760307, 1550474224, 2519520614, 5039041228, 10078082456, 20156164912]

約数ペア:

[(1, 20156164912), (2, 10078082456), (4, 5039041228), (8, 2519520614), (13, 1550474224), (16, 1259760307), (26, 775237112), (52, 387618556), (79, 255141328), (104, 193809278), (157, 128383216), (158, 127570664), (169, 119267248), (208, 96904639), (314, 64191608), (316, 63785332), (338, 59633624), (601, 33537712), (628, 32095804), (632, 31892666), (676, 29816812), (1027, 19626256), (1202, 16768856), (1256, 16047902), (1264, 15946333), (1352, 14908406), (2041, 9875632), (2054, 9813128), (2404, 8384428), (2512, 8023951), (2704, 7454203), (4082, 4937816), (4108, 4906564), (4808, 4192214), (7813, 2579824), (8164, 2468908), (8216, 2453282), (9616, 2096107), (12403, 1625104), (13351, 1509712), (15626, 1289912), (16328, 1234454), (16432, 1226641), (24806, 812552), (26533, 759664), (26702, 754856), (31252, 644956), (32656, 617227), (47479, 424528), (49612, 406276), (53066, 379832), (53404, 377428), (62504, 322478), (94357, 213616), (94958, 212264), (99224, 203138), (101569, 198448), (106132, 189916), (106808, 188714), (125008, 161239)]