20700108

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4021}}^1$

素因数の和:4055

約数の個数: 72

約数和(自身を含む): 61488336

約数和(自身を除く): 40788228

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 39, 44, 52, 66, 78, 99, 117, 132, 143, 156, 198, 234, 286, 396, 429, 468, 572, 858, 1287, 1716, 2574, 4021, 5148, 8042, 12063, 16084, 24126, 36189, 44231, 48252, 52273, 72378, 88462, 104546, 132693, 144756, 156819, 176924, 209092, 265386, 313638, 398079, 470457, 530772, 575003, 627276, 796158, 940914, 1150006, 1592316, 1725009, 1881828, 2300012, 3450018, 5175027, 6900036, 10350054, 20700108]

約数ペア:

[(1, 20700108), (2, 10350054), (3, 6900036), (4, 5175027), (6, 3450018), (9, 2300012), (11, 1881828), (12, 1725009), (13, 1592316), (18, 1150006), (22, 940914), (26, 796158), (33, 627276), (36, 575003), (39, 530772), (44, 470457), (52, 398079), (66, 313638), (78, 265386), (99, 209092), (117, 176924), (132, 156819), (143, 144756), (156, 132693), (198, 104546), (234, 88462), (286, 72378), (396, 52273), (429, 48252), (468, 44231), (572, 36189), (858, 24126), (1287, 16084), (1716, 12063), (2574, 8042), (4021, 5148)]