20694180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{617}}^1$

素因数の和:685

約数の個数: 96

約数和(自身を含む): 63955584

約数和(自身を除く): 43261404

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 43, 52, 60, 65, 78, 86, 129, 130, 156, 172, 195, 215, 258, 260, 390, 430, 516, 559, 617, 645, 780, 860, 1118, 1234, 1290, 1677, 1851, 2236, 2468, 2580, 2795, 3085, 3354, 3702, 5590, 6170, 6708, 7404, 8021, 8385, 9255, 11180, 12340, 16042, 16770, 18510, 24063, 26531, 32084, 33540, 37020, 40105, 48126, 53062, 79593, 80210, 96252, 106124, 120315, 132655, 159186, 160420, 240630, 265310, 318372, 344903, 397965, 481260, 530620, 689806, 795930, 1034709, 1379612, 1591860, 1724515, 2069418, 3449030, 4138836, 5173545, 6898060, 10347090, 20694180]

約数ペア:

[(1, 20694180), (2, 10347090), (3, 6898060), (4, 5173545), (5, 4138836), (6, 3449030), (10, 2069418), (12, 1724515), (13, 1591860), (15, 1379612), (20, 1034709), (26, 795930), (30, 689806), (39, 530620), (43, 481260), (52, 397965), (60, 344903), (65, 318372), (78, 265310), (86, 240630), (129, 160420), (130, 159186), (156, 132655), (172, 120315), (195, 106124), (215, 96252), (258, 80210), (260, 79593), (390, 53062), (430, 48126), (516, 40105), (559, 37020), (617, 33540), (645, 32084), (780, 26531), (860, 24063), (1118, 18510), (1234, 16770), (1290, 16042), (1677, 12340), (1851, 11180), (2236, 9255), (2468, 8385), (2580, 8021), (2795, 7404), (3085, 6708), (3354, 6170), (3702, 5590)]