257729940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1327}}^1$

素因数の和:1438

約数の個数: 144

約数和(自身を含む): 852703488

約数和(自身を除く): 594973548

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 83, 90, 117, 130, 156, 166, 180, 195, 234, 249, 260, 332, 390, 415, 468, 498, 585, 747, 780, 830, 996, 1079, 1170, 1245, 1327, 1494, 1660, 2158, 2340, 2490, 2654, 2988, 3237, 3735, 3981, 4316, 4980, 5308, 5395, 6474, 6635, 7470, 7962, 9711, 10790, 11943, 12948, 13270, 14940, 15924, 16185, 17251, 19422, 19905, 21580, 23886, 26540, 32370, 34502, 38844, 39810, 47772, 48555, 51753, 59715, 64740, 69004, 79620, 86255, 97110, 103506, 110141, 119430, 155259, 172510, 194220, 207012, 220282, 238860, 258765, 310518, 330423, 345020, 440564, 517530, 550705, 621036, 660846, 776295, 991269, 1035060, 1101410, 1321692, 1431833, 1552590, 1652115, 1982538, 2202820, 2863666, 3105180, 3304230, 3965076, 4295499, 4956345, 5727332, 6608460, 7159165, 8590998, 9912690, 12886497, 14318330, 17181996, 19825380, 21477495, 25772994, 28636660, 42954990, 51545988, 64432485, 85909980, 128864970, 257729940]

約数ペア:

[(1, 257729940), (2, 128864970), (3, 85909980), (4, 64432485), (5, 51545988), (6, 42954990), (9, 28636660), (10, 25772994), (12, 21477495), (13, 19825380), (15, 17181996), (18, 14318330), (20, 12886497), (26, 9912690), (30, 8590998), (36, 7159165), (39, 6608460), (45, 5727332), (52, 4956345), (60, 4295499), (65, 3965076), (78, 3304230), (83, 3105180), (90, 2863666), (117, 2202820), (130, 1982538), (156, 1652115), (166, 1552590), (180, 1431833), (195, 1321692), (234, 1101410), (249, 1035060), (260, 991269), (332, 776295), (390, 660846), (415, 621036), (468, 550705), (498, 517530), (585, 440564), (747, 345020), (780, 330423), (830, 310518), (996, 258765), (1079, 238860), (1170, 220282), (1245, 207012), (1327, 194220), (1494, 172510), (1660, 155259), (2158, 119430), (2340, 110141), (2490, 103506), (2654, 97110), (2988, 86255), (3237, 79620), (3735, 69004), (3981, 64740), (4316, 59715), (4980, 51753), (5308, 48555), (5395, 47772), (6474, 39810), (6635, 38844), (7470, 34502), (7962, 32370), (9711, 26540), (10790, 23886), (11943, 21580), (12948, 19905), (13270, 19422), (14940, 17251), (15924, 16185)]