19730048

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:265

約数の個数: 64

約数和(自身を含む): 43182720

約数和(自身を除く): 23452672

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 71, 104, 128, 142, 167, 208, 284, 334, 416, 568, 668, 832, 923, 1136, 1336, 1664, 1846, 2171, 2272, 2672, 3692, 4342, 4544, 5344, 7384, 8684, 9088, 10688, 11857, 14768, 17368, 21376, 23714, 29536, 34736, 47428, 59072, 69472, 94856, 118144, 138944, 154141, 189712, 277888, 308282, 379424, 616564, 758848, 1233128, 1517696, 2466256, 4932512, 9865024, 19730048]

約数ペア:

[(1, 19730048), (2, 9865024), (4, 4932512), (8, 2466256), (13, 1517696), (16, 1233128), (26, 758848), (32, 616564), (52, 379424), (64, 308282), (71, 277888), (104, 189712), (128, 154141), (142, 138944), (167, 118144), (208, 94856), (284, 69472), (334, 59072), (416, 47428), (568, 34736), (668, 29536), (832, 23714), (923, 21376), (1136, 17368), (1336, 14768), (1664, 11857), (1846, 10688), (2171, 9088), (2272, 8684), (2672, 7384), (3692, 5344), (4342, 4544)]