20674830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:142

約数の個数: 128

約数和(自身を含む): 58392576

約数和(自身を除く): 37717746

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 31, 33, 43, 47, 55, 62, 66, 86, 93, 94, 110, 129, 141, 155, 165, 186, 215, 235, 258, 282, 310, 330, 341, 430, 465, 470, 473, 517, 645, 682, 705, 930, 946, 1023, 1034, 1290, 1333, 1410, 1419, 1457, 1551, 1705, 2021, 2046, 2365, 2585, 2666, 2838, 2914, 3102, 3410, 3999, 4042, 4371, 4730, 5115, 5170, 6063, 6665, 7095, 7285, 7755, 7998, 8742, 10105, 10230, 12126, 13330, 14190, 14570, 14663, 15510, 16027, 19995, 20210, 21855, 22231, 29326, 30315, 32054, 39990, 43710, 43989, 44462, 48081, 60630, 62651, 66693, 73315, 80135, 87978, 96162, 111155, 125302, 133386, 146630, 160270, 187953, 219945, 222310, 240405, 313255, 333465, 375906, 439890, 480810, 626510, 666930, 689161, 939765, 1378322, 1879530, 2067483, 3445805, 4134966, 6891610, 10337415, 20674830]

約数ペア:

[(1, 20674830), (2, 10337415), (3, 6891610), (5, 4134966), (6, 3445805), (10, 2067483), (11, 1879530), (15, 1378322), (22, 939765), (30, 689161), (31, 666930), (33, 626510), (43, 480810), (47, 439890), (55, 375906), (62, 333465), (66, 313255), (86, 240405), (93, 222310), (94, 219945), (110, 187953), (129, 160270), (141, 146630), (155, 133386), (165, 125302), (186, 111155), (215, 96162), (235, 87978), (258, 80135), (282, 73315), (310, 66693), (330, 62651), (341, 60630), (430, 48081), (465, 44462), (470, 43989), (473, 43710), (517, 39990), (645, 32054), (682, 30315), (705, 29326), (930, 22231), (946, 21855), (1023, 20210), (1034, 19995), (1290, 16027), (1333, 15510), (1410, 14663), (1419, 14570), (1457, 14190), (1551, 13330), (1705, 12126), (2021, 10230), (2046, 10105), (2365, 8742), (2585, 7998), (2666, 7755), (2838, 7285), (2914, 7095), (3102, 6665), (3410, 6063), (3999, 5170), (4042, 5115), (4371, 4730)]