20033440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{577}}^1$

素因数の和:630

約数の個数: 96

約数和(自身を含む): 55931904

約数和(自身を除く): 35898464

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 160, 217, 224, 248, 280, 310, 434, 496, 560, 577, 620, 868, 992, 1085, 1120, 1154, 1240, 1736, 2170, 2308, 2480, 2885, 3472, 4039, 4340, 4616, 4960, 5770, 6944, 8078, 8680, 9232, 11540, 16156, 17360, 17887, 18464, 20195, 23080, 32312, 34720, 35774, 40390, 46160, 64624, 71548, 80780, 89435, 92320, 125209, 129248, 143096, 161560, 178870, 250418, 286192, 323120, 357740, 500836, 572384, 626045, 646240, 715480, 1001672, 1252090, 1430960, 2003344, 2504180, 2861920, 4006688, 5008360, 10016720, 20033440]

約数ペア:

[(1, 20033440), (2, 10016720), (4, 5008360), (5, 4006688), (7, 2861920), (8, 2504180), (10, 2003344), (14, 1430960), (16, 1252090), (20, 1001672), (28, 715480), (31, 646240), (32, 626045), (35, 572384), (40, 500836), (56, 357740), (62, 323120), (70, 286192), (80, 250418), (112, 178870), (124, 161560), (140, 143096), (155, 129248), (160, 125209), (217, 92320), (224, 89435), (248, 80780), (280, 71548), (310, 64624), (434, 46160), (496, 40390), (560, 35774), (577, 34720), (620, 32312), (868, 23080), (992, 20195), (1085, 18464), (1120, 17887), (1154, 17360), (1240, 16156), (1736, 11540), (2170, 9232), (2308, 8680), (2480, 8078), (2885, 6944), (3472, 5770), (4039, 4960), (4340, 4616)]