15318680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:444

約数の個数: 64

約数和(自身を含む): 37648800

約数和(自身を除く): 22330120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 89, 104, 130, 178, 260, 331, 356, 445, 520, 662, 712, 890, 1157, 1324, 1655, 1780, 2314, 2648, 3310, 3560, 4303, 4628, 5785, 6620, 8606, 9256, 11570, 13240, 17212, 21515, 23140, 29459, 34424, 43030, 46280, 58918, 86060, 117836, 147295, 172120, 235672, 294590, 382967, 589180, 765934, 1178360, 1531868, 1914835, 3063736, 3829670, 7659340, 15318680]

約数ペア:

[(1, 15318680), (2, 7659340), (4, 3829670), (5, 3063736), (8, 1914835), (10, 1531868), (13, 1178360), (20, 765934), (26, 589180), (40, 382967), (52, 294590), (65, 235672), (89, 172120), (104, 147295), (130, 117836), (178, 86060), (260, 58918), (331, 46280), (356, 43030), (445, 34424), (520, 29459), (662, 23140), (712, 21515), (890, 17212), (1157, 13240), (1324, 11570), (1655, 9256), (1780, 8606), (2314, 6620), (2648, 5785), (3310, 4628), (3560, 4303)]