28278045

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1$

素因数の和:307

約数の個数: 64

約数和(自身を含む): 53913600

約数和(自身を除く): 25635555

約数列:

[1, 3, 5, 9, 15, 27, 29, 31, 45, 87, 93, 135, 145, 155, 233, 261, 279, 435, 465, 699, 783, 837, 899, 1165, 1305, 1395, 2097, 2697, 3495, 3915, 4185, 4495, 6291, 6757, 7223, 8091, 10485, 13485, 20271, 21669, 24273, 31455, 33785, 36115, 40455, 60813, 65007, 101355, 108345, 121365, 182439, 195021, 209467, 304065, 325035, 628401, 912195, 975105, 1047335, 1885203, 3142005, 5655609, 9426015, 28278045]

約数ペア:

[(1, 28278045), (3, 9426015), (5, 5655609), (9, 3142005), (15, 1885203), (27, 1047335), (29, 975105), (31, 912195), (45, 628401), (87, 325035), (93, 304065), (135, 209467), (145, 195021), (155, 182439), (233, 121365), (261, 108345), (279, 101355), (435, 65007), (465, 60813), (699, 40455), (783, 36115), (837, 33785), (899, 31455), (1165, 24273), (1305, 21669), (1395, 20271), (2097, 13485), (2697, 10485), (3495, 8091), (3915, 7223), (4185, 6757), (4495, 6291)]