20672340

素因数分解:

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

素因数の和:1601

約数の個数: 96

約数和(自身を含む): 66044160

約数和(自身を除く): 45371820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 156, 170, 195, 204, 221, 255, 260, 340, 390, 442, 510, 663, 780, 884, 1020, 1105, 1326, 1559, 2210, 2652, 3118, 3315, 4420, 4677, 6236, 6630, 7795, 9354, 13260, 15590, 18708, 20267, 23385, 26503, 31180, 40534, 46770, 53006, 60801, 79509, 81068, 93540, 101335, 106012, 121602, 132515, 159018, 202670, 243204, 265030, 304005, 318036, 344539, 397545, 405340, 530060, 608010, 689078, 795090, 1033617, 1216020, 1378156, 1590180, 1722695, 2067234, 3445390, 4134468, 5168085, 6890780, 10336170, 20672340]

約数ペア:

[(1, 20672340), (2, 10336170), (3, 6890780), (4, 5168085), (5, 4134468), (6, 3445390), (10, 2067234), (12, 1722695), (13, 1590180), (15, 1378156), (17, 1216020), (20, 1033617), (26, 795090), (30, 689078), (34, 608010), (39, 530060), (51, 405340), (52, 397545), (60, 344539), (65, 318036), (68, 304005), (78, 265030), (85, 243204), (102, 202670), (130, 159018), (156, 132515), (170, 121602), (195, 106012), (204, 101335), (221, 93540), (255, 81068), (260, 79509), (340, 60801), (390, 53006), (442, 46770), (510, 40534), (663, 31180), (780, 26503), (884, 23385), (1020, 20267), (1105, 18708), (1326, 15590), (1559, 13260), (2210, 9354), (2652, 7795), (3118, 6630), (3315, 6236), (4420, 4677)]