20900412

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:148

約数の個数: 144

約数和(自身を含む): 62741952

約数和(自身を除く): 41841540

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 37, 39, 51, 52, 68, 71, 74, 78, 102, 111, 117, 142, 148, 153, 156, 204, 213, 221, 222, 234, 284, 306, 333, 426, 442, 444, 468, 481, 612, 629, 639, 663, 666, 852, 884, 923, 962, 1207, 1258, 1278, 1326, 1332, 1443, 1846, 1887, 1924, 1989, 2414, 2516, 2556, 2627, 2652, 2769, 2886, 3621, 3692, 3774, 3978, 4329, 4828, 5254, 5538, 5661, 5772, 7242, 7548, 7881, 7956, 8177, 8307, 8658, 10508, 10863, 11076, 11322, 14484, 15691, 15762, 16354, 16614, 17316, 21726, 22644, 23643, 24531, 31382, 31524, 32708, 33228, 34151, 43452, 44659, 47073, 47286, 49062, 62764, 68302, 73593, 89318, 94146, 94572, 98124, 102453, 133977, 136604, 141219, 147186, 178636, 188292, 204906, 267954, 282438, 294372, 307359, 401931, 409812, 535908, 564876, 580567, 614718, 803862, 1161134, 1229436, 1607724, 1741701, 2322268, 3483402, 5225103, 6966804, 10450206, 20900412]

約数ペア:

[(1, 20900412), (2, 10450206), (3, 6966804), (4, 5225103), (6, 3483402), (9, 2322268), (12, 1741701), (13, 1607724), (17, 1229436), (18, 1161134), (26, 803862), (34, 614718), (36, 580567), (37, 564876), (39, 535908), (51, 409812), (52, 401931), (68, 307359), (71, 294372), (74, 282438), (78, 267954), (102, 204906), (111, 188292), (117, 178636), (142, 147186), (148, 141219), (153, 136604), (156, 133977), (204, 102453), (213, 98124), (221, 94572), (222, 94146), (234, 89318), (284, 73593), (306, 68302), (333, 62764), (426, 49062), (442, 47286), (444, 47073), (468, 44659), (481, 43452), (612, 34151), (629, 33228), (639, 32708), (663, 31524), (666, 31382), (852, 24531), (884, 23643), (923, 22644), (962, 21726), (1207, 17316), (1258, 16614), (1278, 16354), (1326, 15762), (1332, 15691), (1443, 14484), (1846, 11322), (1887, 11076), (1924, 10863), (1989, 10508), (2414, 8658), (2516, 8307), (2556, 8177), (2627, 7956), (2652, 7881), (2769, 7548), (2886, 7242), (3621, 5772), (3692, 5661), (3774, 5538), (3978, 5254), (4329, 4828)]