208558980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{165523}}^1$

素因数の和:165545

約数の個数: 72

約数和(自身を含む): 723008832

約数和(自身を除く): 514449852

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 165523, 331046, 496569, 662092, 827615, 993138, 1158661, 1489707, 1655230, 1986276, 2317322, 2482845, 2979414, 3310460, 3475983, 4634644, 4965690, 5793305, 5958828, 6951966, 7448535, 9931380, 10427949, 11586610, 13903932, 14897070, 17379915, 20855898, 23173220, 29794140, 34759830, 41711796, 52139745, 69519660, 104279490, 208558980]

約数ペア:

[(1, 208558980), (2, 104279490), (3, 69519660), (4, 52139745), (5, 41711796), (6, 34759830), (7, 29794140), (9, 23173220), (10, 20855898), (12, 17379915), (14, 14897070), (15, 13903932), (18, 11586610), (20, 10427949), (21, 9931380), (28, 7448535), (30, 6951966), (35, 5958828), (36, 5793305), (42, 4965690), (45, 4634644), (60, 3475983), (63, 3310460), (70, 2979414), (84, 2482845), (90, 2317322), (105, 1986276), (126, 1655230), (140, 1489707), (180, 1158661), (210, 993138), (252, 827615), (315, 662092), (420, 496569), (630, 331046), (1260, 165523)]