1289299960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:222

約数の個数: 192

約数和(自身を含む): 3372415200

約数和(自身を除く): 2083115240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 43, 46, 52, 65, 86, 92, 104, 109, 115, 130, 172, 184, 215, 218, 230, 260, 299, 344, 430, 436, 460, 520, 529, 545, 559, 598, 860, 872, 920, 989, 1058, 1090, 1118, 1196, 1417, 1495, 1720, 1978, 2116, 2180, 2236, 2392, 2507, 2645, 2795, 2834, 2990, 3956, 4232, 4360, 4472, 4687, 4945, 5014, 5290, 5590, 5668, 5980, 6877, 7085, 7912, 9374, 9890, 10028, 10580, 11180, 11336, 11960, 12535, 12857, 13754, 14170, 18748, 19780, 20056, 21160, 22360, 22747, 23435, 25070, 25714, 27508, 28340, 32591, 34385, 37496, 39560, 45494, 46870, 50140, 51428, 55016, 56680, 57661, 60931, 64285, 65182, 68770, 90988, 93740, 100280, 102856, 107801, 113735, 115322, 121862, 128570, 130364, 137540, 162955, 181976, 187480, 215602, 227470, 230644, 243724, 257140, 260728, 275080, 288305, 295711, 304655, 325910, 431204, 454940, 461288, 487448, 514280, 539005, 576610, 591422, 609310, 651820, 749593, 862408, 909880, 1078010, 1153220, 1182844, 1218620, 1303640, 1401413, 1478555, 1499186, 2156020, 2306440, 2365688, 2437240, 2479423, 2802826, 2957110, 2998372, 3747965, 4312040, 4958846, 5605652, 5914220, 5996744, 7007065, 7495930, 9917692, 11211304, 11828440, 12397115, 14014130, 14991860, 19835384, 24794230, 28028260, 29983720, 32232499, 49588460, 56056520, 64464998, 99176920, 128929996, 161162495, 257859992, 322324990, 644649980, 1289299960]

約数ペア:

[(1, 1289299960), (2, 644649980), (4, 322324990), (5, 257859992), (8, 161162495), (10, 128929996), (13, 99176920), (20, 64464998), (23, 56056520), (26, 49588460), (40, 32232499), (43, 29983720), (46, 28028260), (52, 24794230), (65, 19835384), (86, 14991860), (92, 14014130), (104, 12397115), (109, 11828440), (115, 11211304), (130, 9917692), (172, 7495930), (184, 7007065), (215, 5996744), (218, 5914220), (230, 5605652), (260, 4958846), (299, 4312040), (344, 3747965), (430, 2998372), (436, 2957110), (460, 2802826), (520, 2479423), (529, 2437240), (545, 2365688), (559, 2306440), (598, 2156020), (860, 1499186), (872, 1478555), (920, 1401413), (989, 1303640), (1058, 1218620), (1090, 1182844), (1118, 1153220), (1196, 1078010), (1417, 909880), (1495, 862408), (1720, 749593), (1978, 651820), (2116, 609310), (2180, 591422), (2236, 576610), (2392, 539005), (2507, 514280), (2645, 487448), (2795, 461288), (2834, 454940), (2990, 431204), (3956, 325910), (4232, 304655), (4360, 295711), (4472, 288305), (4687, 275080), (4945, 260728), (5014, 257140), (5290, 243724), (5590, 230644), (5668, 227470), (5980, 215602), (6877, 187480), (7085, 181976), (7912, 162955), (9374, 137540), (9890, 130364), (10028, 128570), (10580, 121862), (11180, 115322), (11336, 113735), (11960, 107801), (12535, 102856), (12857, 100280), (13754, 93740), (14170, 90988), (18748, 68770), (19780, 65182), (20056, 64285), (21160, 60931), (22360, 57661), (22747, 56680), (23435, 55016), (25070, 51428), (25714, 50140), (27508, 46870), (28340, 45494), (32591, 39560), (34385, 37496)]