72021560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3221}}^1$

素因数の和:3288

約数の個数: 64

約数和(自身を含む): 178627680

約数和(自身を除く): 106606120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 430, 520, 559, 860, 1118, 1720, 2236, 2795, 3221, 4472, 5590, 6442, 11180, 12884, 16105, 22360, 25768, 32210, 41873, 64420, 83746, 128840, 138503, 167492, 209365, 277006, 334984, 418730, 554012, 692515, 837460, 1108024, 1385030, 1674920, 1800539, 2770060, 3601078, 5540120, 7202156, 9002695, 14404312, 18005390, 36010780, 72021560]

約数ペア:

[(1, 72021560), (2, 36010780), (4, 18005390), (5, 14404312), (8, 9002695), (10, 7202156), (13, 5540120), (20, 3601078), (26, 2770060), (40, 1800539), (43, 1674920), (52, 1385030), (65, 1108024), (86, 837460), (104, 692515), (130, 554012), (172, 418730), (215, 334984), (260, 277006), (344, 209365), (430, 167492), (520, 138503), (559, 128840), (860, 83746), (1118, 64420), (1720, 41873), (2236, 32210), (2795, 25768), (3221, 22360), (4472, 16105), (5590, 12884), (6442, 11180)]