20650140

素因数分解:

$2^2\times 3^5\times 5^1\times 7^1\times {\mathrm{607}}^1$

素因数の和:638

約数の個数: 144

約数和(自身を含む): 74360832

約数和(自身を除く): 53710692

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 243, 252, 270, 315, 324, 378, 405, 420, 486, 540, 567, 607, 630, 756, 810, 945, 972, 1134, 1214, 1215, 1260, 1620, 1701, 1821, 1890, 2268, 2428, 2430, 2835, 3035, 3402, 3642, 3780, 4249, 4860, 5463, 5670, 6070, 6804, 7284, 8498, 8505, 9105, 10926, 11340, 12140, 12747, 16389, 16996, 17010, 18210, 21245, 21852, 25494, 27315, 32778, 34020, 36420, 38241, 42490, 49167, 50988, 54630, 63735, 65556, 76482, 81945, 84980, 98334, 109260, 114723, 127470, 147501, 152964, 163890, 191205, 196668, 229446, 245835, 254940, 295002, 327780, 344169, 382410, 458892, 491670, 573615, 590004, 688338, 737505, 764820, 983340, 1032507, 1147230, 1376676, 1475010, 1720845, 2065014, 2294460, 2950020, 3441690, 4130028, 5162535, 6883380, 10325070, 20650140]

約数ペア:

[(1, 20650140), (2, 10325070), (3, 6883380), (4, 5162535), (5, 4130028), (6, 3441690), (7, 2950020), (9, 2294460), (10, 2065014), (12, 1720845), (14, 1475010), (15, 1376676), (18, 1147230), (20, 1032507), (21, 983340), (27, 764820), (28, 737505), (30, 688338), (35, 590004), (36, 573615), (42, 491670), (45, 458892), (54, 382410), (60, 344169), (63, 327780), (70, 295002), (81, 254940), (84, 245835), (90, 229446), (105, 196668), (108, 191205), (126, 163890), (135, 152964), (140, 147501), (162, 127470), (180, 114723), (189, 109260), (210, 98334), (243, 84980), (252, 81945), (270, 76482), (315, 65556), (324, 63735), (378, 54630), (405, 50988), (420, 49167), (486, 42490), (540, 38241), (567, 36420), (607, 34020), (630, 32778), (756, 27315), (810, 25494), (945, 21852), (972, 21245), (1134, 18210), (1214, 17010), (1215, 16996), (1260, 16389), (1620, 12747), (1701, 12140), (1821, 11340), (1890, 10926), (2268, 9105), (2428, 8505), (2430, 8498), (2835, 7284), (3035, 6804), (3402, 6070), (3642, 5670), (3780, 5463), (4249, 4860)]