319712920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{2897}}^1$

素因数の和:3028

約数の個数: 64

約数和(自身を含む): 751161600

約数和(自身を除く): 431448680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 89, 124, 155, 178, 248, 310, 356, 445, 620, 712, 890, 1240, 1780, 2759, 2897, 3560, 5518, 5794, 11036, 11588, 13795, 14485, 22072, 23176, 27590, 28970, 55180, 57940, 89807, 110360, 115880, 179614, 257833, 359228, 449035, 515666, 718456, 898070, 1031332, 1289165, 1796140, 2062664, 2578330, 3592280, 5156660, 7992823, 10313320, 15985646, 31971292, 39964115, 63942584, 79928230, 159856460, 319712920]

約数ペア:

[(1, 319712920), (2, 159856460), (4, 79928230), (5, 63942584), (8, 39964115), (10, 31971292), (20, 15985646), (31, 10313320), (40, 7992823), (62, 5156660), (89, 3592280), (124, 2578330), (155, 2062664), (178, 1796140), (248, 1289165), (310, 1031332), (356, 898070), (445, 718456), (620, 515666), (712, 449035), (890, 359228), (1240, 257833), (1780, 179614), (2759, 115880), (2897, 110360), (3560, 89807), (5518, 57940), (5794, 55180), (11036, 28970), (11588, 27590), (13795, 23176), (14485, 22072)]