2240680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:194

約数の個数: 64

約数和(自身を含む): 5644800

約数和(自身を除く): 3404120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 139, 155, 248, 260, 278, 310, 403, 520, 556, 620, 695, 806, 1112, 1240, 1390, 1612, 1807, 2015, 2780, 3224, 3614, 4030, 4309, 5560, 7228, 8060, 8618, 9035, 14456, 16120, 17236, 18070, 21545, 34472, 36140, 43090, 56017, 72280, 86180, 112034, 172360, 224068, 280085, 448136, 560170, 1120340, 2240680]

約数ペア:

[(1, 2240680), (2, 1120340), (4, 560170), (5, 448136), (8, 280085), (10, 224068), (13, 172360), (20, 112034), (26, 86180), (31, 72280), (40, 56017), (52, 43090), (62, 36140), (65, 34472), (104, 21545), (124, 18070), (130, 17236), (139, 16120), (155, 14456), (248, 9035), (260, 8618), (278, 8060), (310, 7228), (403, 5560), (520, 4309), (556, 4030), (620, 3614), (695, 3224), (806, 2780), (1112, 2015), (1240, 1807), (1390, 1612)]