87241960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 228614400

約数和(自身を除く): 141372440

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 71, 85, 104, 130, 136, 139, 142, 170, 221, 260, 278, 284, 340, 355, 442, 520, 556, 568, 680, 695, 710, 884, 923, 1105, 1112, 1207, 1390, 1420, 1768, 1807, 1846, 2210, 2363, 2414, 2780, 2840, 3614, 3692, 4420, 4615, 4726, 4828, 5560, 6035, 7228, 7384, 8840, 9035, 9230, 9452, 9656, 9869, 11815, 12070, 14456, 15691, 18070, 18460, 18904, 19738, 23630, 24140, 30719, 31382, 36140, 36920, 39476, 47260, 48280, 49345, 61438, 62764, 72280, 78455, 78952, 94520, 98690, 122876, 125528, 128297, 153595, 156910, 167773, 197380, 245752, 256594, 307190, 313820, 335546, 394760, 513188, 614380, 627640, 641485, 671092, 838865, 1026376, 1228760, 1282970, 1342184, 1677730, 2181049, 2565940, 3355460, 4362098, 5131880, 6710920, 8724196, 10905245, 17448392, 21810490, 43620980, 87241960]

約数ペア:

[(1, 87241960), (2, 43620980), (4, 21810490), (5, 17448392), (8, 10905245), (10, 8724196), (13, 6710920), (17, 5131880), (20, 4362098), (26, 3355460), (34, 2565940), (40, 2181049), (52, 1677730), (65, 1342184), (68, 1282970), (71, 1228760), (85, 1026376), (104, 838865), (130, 671092), (136, 641485), (139, 627640), (142, 614380), (170, 513188), (221, 394760), (260, 335546), (278, 313820), (284, 307190), (340, 256594), (355, 245752), (442, 197380), (520, 167773), (556, 156910), (568, 153595), (680, 128297), (695, 125528), (710, 122876), (884, 98690), (923, 94520), (1105, 78952), (1112, 78455), (1207, 72280), (1390, 62764), (1420, 61438), (1768, 49345), (1807, 48280), (1846, 47260), (2210, 39476), (2363, 36920), (2414, 36140), (2780, 31382), (2840, 30719), (3614, 24140), (3692, 23630), (4420, 19738), (4615, 18904), (4726, 18460), (4828, 18070), (5560, 15691), (6035, 14456), (7228, 12070), (7384, 11815), (8840, 9869), (9035, 9656), (9230, 9452)]