8906920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1$

素因数の和:706

約数の個数: 64

約数和(自身を含む): 22602240

約数和(自身を除く): 13695320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 653, 682, 1240, 1306, 1364, 1705, 2612, 2728, 3265, 3410, 5224, 6530, 6820, 7183, 13060, 13640, 14366, 20243, 26120, 28732, 35915, 40486, 57464, 71830, 80972, 101215, 143660, 161944, 202430, 222673, 287320, 404860, 445346, 809720, 890692, 1113365, 1781384, 2226730, 4453460, 8906920]

約数ペア:

[(1, 8906920), (2, 4453460), (4, 2226730), (5, 1781384), (8, 1113365), (10, 890692), (11, 809720), (20, 445346), (22, 404860), (31, 287320), (40, 222673), (44, 202430), (55, 161944), (62, 143660), (88, 101215), (110, 80972), (124, 71830), (155, 57464), (220, 40486), (248, 35915), (310, 28732), (341, 26120), (440, 20243), (620, 14366), (653, 13640), (682, 13060), (1240, 7183), (1306, 6820), (1364, 6530), (1705, 5224), (2612, 3410), (2728, 3265)]