20055780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1663}}^1$

素因数の和:1745

約数の個数: 72

約数和(自身を含む): 61780992

約数和(自身を除く): 41725212

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 67, 90, 134, 180, 201, 268, 335, 402, 603, 670, 804, 1005, 1206, 1340, 1663, 2010, 2412, 3015, 3326, 4020, 4989, 6030, 6652, 8315, 9978, 12060, 14967, 16630, 19956, 24945, 29934, 33260, 49890, 59868, 74835, 99780, 111421, 149670, 222842, 299340, 334263, 445684, 557105, 668526, 1002789, 1114210, 1337052, 1671315, 2005578, 2228420, 3342630, 4011156, 5013945, 6685260, 10027890, 20055780]

約数ペア:

[(1, 20055780), (2, 10027890), (3, 6685260), (4, 5013945), (5, 4011156), (6, 3342630), (9, 2228420), (10, 2005578), (12, 1671315), (15, 1337052), (18, 1114210), (20, 1002789), (30, 668526), (36, 557105), (45, 445684), (60, 334263), (67, 299340), (90, 222842), (134, 149670), (180, 111421), (201, 99780), (268, 74835), (335, 59868), (402, 49890), (603, 33260), (670, 29934), (804, 24945), (1005, 19956), (1206, 16630), (1340, 14967), (1663, 12060), (2010, 9978), (2412, 8315), (3015, 6652), (3326, 6030), (4020, 4989)]