13781560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1559}}^1$

素因数の和:1600

約数の個数: 64

約数和(自身を含む): 35380800

約数和(自身を除く): 21599240

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1559, 1768, 2210, 3118, 4420, 6236, 7795, 8840, 12472, 15590, 20267, 26503, 31180, 40534, 53006, 62360, 81068, 101335, 106012, 132515, 162136, 202670, 212024, 265030, 344539, 405340, 530060, 689078, 810680, 1060120, 1378156, 1722695, 2756312, 3445390, 6890780, 13781560]

約数ペア:

[(1, 13781560), (2, 6890780), (4, 3445390), (5, 2756312), (8, 1722695), (10, 1378156), (13, 1060120), (17, 810680), (20, 689078), (26, 530060), (34, 405340), (40, 344539), (52, 265030), (65, 212024), (68, 202670), (85, 162136), (104, 132515), (130, 106012), (136, 101335), (170, 81068), (221, 62360), (260, 53006), (340, 40534), (442, 31180), (520, 26503), (680, 20267), (884, 15590), (1105, 12472), (1559, 8840), (1768, 7795), (2210, 6236), (3118, 4420)]