28293642

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:236

約数の個数: 72

約数和(自身を含む): 67830048

約数和(自身を除く): 39536406

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 71, 78, 117, 131, 142, 169, 213, 234, 262, 338, 393, 426, 507, 639, 786, 923, 1014, 1179, 1278, 1521, 1703, 1846, 2358, 2769, 3042, 3406, 5109, 5538, 8307, 9301, 10218, 11999, 15327, 16614, 18602, 22139, 23998, 27903, 30654, 35997, 44278, 55806, 66417, 71994, 83709, 107991, 120913, 132834, 167418, 199251, 215982, 241826, 362739, 398502, 725478, 1088217, 1571869, 2176434, 3143738, 4715607, 9431214, 14146821, 28293642]

約数ペア:

[(1, 28293642), (2, 14146821), (3, 9431214), (6, 4715607), (9, 3143738), (13, 2176434), (18, 1571869), (26, 1088217), (39, 725478), (71, 398502), (78, 362739), (117, 241826), (131, 215982), (142, 199251), (169, 167418), (213, 132834), (234, 120913), (262, 107991), (338, 83709), (393, 71994), (426, 66417), (507, 55806), (639, 44278), (786, 35997), (923, 30654), (1014, 27903), (1179, 23998), (1278, 22139), (1521, 18602), (1703, 16614), (1846, 15327), (2358, 11999), (2769, 10218), (3042, 9301), (3406, 8307), (5109, 5538)]