178213980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{60617}}^1$

素因数の和:60643

約数の個数: 72

約数和(自身を含む): 580477968

約数和(自身を除く): 402263988

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 60617, 121234, 181851, 242468, 303085, 363702, 424319, 606170, 727404, 848638, 909255, 1212340, 1272957, 1697276, 1818510, 2121595, 2545914, 2970233, 3637020, 4243190, 5091828, 5940466, 6364785, 8486380, 8910699, 11880932, 12729570, 14851165, 17821398, 25459140, 29702330, 35642796, 44553495, 59404660, 89106990, 178213980]

約数ペア:

[(1, 178213980), (2, 89106990), (3, 59404660), (4, 44553495), (5, 35642796), (6, 29702330), (7, 25459140), (10, 17821398), (12, 14851165), (14, 12729570), (15, 11880932), (20, 8910699), (21, 8486380), (28, 6364785), (30, 5940466), (35, 5091828), (42, 4243190), (49, 3637020), (60, 2970233), (70, 2545914), (84, 2121595), (98, 1818510), (105, 1697276), (140, 1272957), (147, 1212340), (196, 909255), (210, 848638), (245, 727404), (294, 606170), (420, 424319), (490, 363702), (588, 303085), (735, 242468), (980, 181851), (1470, 121234), (2940, 60617)]