20287566

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{479}}^1$

素因数の和:681

約数の個数: 48

約数和(自身を含む): 47698560

約数和(自身を除く): 27410994

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 181, 234, 362, 479, 543, 958, 1086, 1437, 1629, 2353, 2874, 3258, 4311, 4706, 6227, 7059, 8622, 12454, 14118, 18681, 21177, 37362, 42354, 56043, 86699, 112086, 173398, 260097, 520194, 780291, 1127087, 1560582, 2254174, 3381261, 6762522, 10143783, 20287566]

約数ペア:

[(1, 20287566), (2, 10143783), (3, 6762522), (6, 3381261), (9, 2254174), (13, 1560582), (18, 1127087), (26, 780291), (39, 520194), (78, 260097), (117, 173398), (181, 112086), (234, 86699), (362, 56043), (479, 42354), (543, 37362), (958, 21177), (1086, 18681), (1437, 14118), (1629, 12454), (2353, 8622), (2874, 7059), (3258, 6227), (4311, 4706)]