178948980

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{6763}}^1$

素因数の和:6795

約数の個数: 144

約数和(自身を含む): 647720640

約数和(自身を除く): 468771660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 882, 945, 980, 1260, 1323, 1470, 1764, 1890, 2205, 2646, 2940, 3780, 4410, 5292, 6615, 6763, 8820, 13230, 13526, 20289, 26460, 27052, 33815, 40578, 47341, 60867, 67630, 81156, 94682, 101445, 121734, 135260, 142023, 182601, 189364, 202890, 236705, 243468, 284046, 304335, 331387, 365202, 405780, 426069, 473410, 568092, 608670, 662774, 710115, 730404, 852138, 913005, 946820, 994161, 1217340, 1278207, 1325548, 1420230, 1656935, 1704276, 1826010, 1988322, 2130345, 2556414, 2840460, 2982483, 3313870, 3652020, 3976644, 4260690, 4970805, 5112828, 5964966, 6391035, 6627740, 8521380, 8947449, 9941610, 11929932, 12782070, 14912415, 17894898, 19883220, 25564140, 29824830, 35789796, 44737245, 59649660, 89474490, 178948980]

約数ペア:

[(1, 178948980), (2, 89474490), (3, 59649660), (4, 44737245), (5, 35789796), (6, 29824830), (7, 25564140), (9, 19883220), (10, 17894898), (12, 14912415), (14, 12782070), (15, 11929932), (18, 9941610), (20, 8947449), (21, 8521380), (27, 6627740), (28, 6391035), (30, 5964966), (35, 5112828), (36, 4970805), (42, 4260690), (45, 3976644), (49, 3652020), (54, 3313870), (60, 2982483), (63, 2840460), (70, 2556414), (84, 2130345), (90, 1988322), (98, 1826010), (105, 1704276), (108, 1656935), (126, 1420230), (135, 1325548), (140, 1278207), (147, 1217340), (180, 994161), (189, 946820), (196, 913005), (210, 852138), (245, 730404), (252, 710115), (270, 662774), (294, 608670), (315, 568092), (378, 473410), (420, 426069), (441, 405780), (490, 365202), (540, 331387), (588, 304335), (630, 284046), (735, 243468), (756, 236705), (882, 202890), (945, 189364), (980, 182601), (1260, 142023), (1323, 135260), (1470, 121734), (1764, 101445), (1890, 94682), (2205, 81156), (2646, 67630), (2940, 60867), (3780, 47341), (4410, 40578), (5292, 33815), (6615, 27052), (6763, 26460), (8820, 20289), (13230, 13526)]