208038520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:269

約数の個数: 128

約数和(自身を含む): 522547200

約数和(自身を除く): 314508680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 71, 85, 124, 136, 139, 142, 155, 170, 248, 278, 284, 310, 340, 355, 527, 556, 568, 620, 680, 695, 710, 1054, 1112, 1207, 1240, 1390, 1420, 2108, 2201, 2363, 2414, 2635, 2780, 2840, 4216, 4309, 4402, 4726, 4828, 5270, 5560, 6035, 8618, 8804, 9452, 9656, 9869, 10540, 11005, 11815, 12070, 17236, 17608, 18904, 19738, 21080, 21545, 22010, 23630, 24140, 34472, 37417, 39476, 43090, 44020, 47260, 48280, 49345, 73253, 74834, 78952, 86180, 88040, 94520, 98690, 146506, 149668, 167773, 172360, 187085, 197380, 293012, 299336, 305939, 335546, 366265, 374170, 394760, 586024, 611878, 671092, 732530, 748340, 838865, 1223756, 1342184, 1465060, 1496680, 1529695, 1677730, 2447512, 2930120, 3059390, 3355460, 5200963, 6118780, 6710920, 10401926, 12237560, 20803852, 26004815, 41607704, 52009630, 104019260, 208038520]

約数ペア:

[(1, 208038520), (2, 104019260), (4, 52009630), (5, 41607704), (8, 26004815), (10, 20803852), (17, 12237560), (20, 10401926), (31, 6710920), (34, 6118780), (40, 5200963), (62, 3355460), (68, 3059390), (71, 2930120), (85, 2447512), (124, 1677730), (136, 1529695), (139, 1496680), (142, 1465060), (155, 1342184), (170, 1223756), (248, 838865), (278, 748340), (284, 732530), (310, 671092), (340, 611878), (355, 586024), (527, 394760), (556, 374170), (568, 366265), (620, 335546), (680, 305939), (695, 299336), (710, 293012), (1054, 197380), (1112, 187085), (1207, 172360), (1240, 167773), (1390, 149668), (1420, 146506), (2108, 98690), (2201, 94520), (2363, 88040), (2414, 86180), (2635, 78952), (2780, 74834), (2840, 73253), (4216, 49345), (4309, 48280), (4402, 47260), (4726, 44020), (4828, 43090), (5270, 39476), (5560, 37417), (6035, 34472), (8618, 24140), (8804, 23630), (9452, 22010), (9656, 21545), (9869, 21080), (10540, 19738), (11005, 18904), (11815, 17608), (12070, 17236)]