128231325

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:459

約数の個数: 72

約数和(自身を含む): 243734400

約数和(自身を除く): 115503075

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 71, 75, 115, 207, 213, 225, 345, 349, 355, 575, 639, 1035, 1047, 1065, 1633, 1725, 1745, 1775, 3141, 3195, 4899, 5175, 5235, 5325, 8027, 8165, 8725, 14697, 15705, 15975, 24081, 24495, 24779, 26175, 40135, 40825, 72243, 73485, 74337, 78525, 120405, 122475, 123895, 200675, 223011, 361215, 367425, 371685, 569917, 602025, 619475, 1115055, 1709751, 1806075, 1858425, 2849585, 5129253, 5575275, 8548755, 14247925, 25646265, 42743775, 128231325]

約数ペア:

[(1, 128231325), (3, 42743775), (5, 25646265), (9, 14247925), (15, 8548755), (23, 5575275), (25, 5129253), (45, 2849585), (69, 1858425), (71, 1806075), (75, 1709751), (115, 1115055), (207, 619475), (213, 602025), (225, 569917), (345, 371685), (349, 367425), (355, 361215), (575, 223011), (639, 200675), (1035, 123895), (1047, 122475), (1065, 120405), (1633, 78525), (1725, 74337), (1745, 73485), (1775, 72243), (3141, 40825), (3195, 40135), (4899, 26175), (5175, 24779), (5235, 24495), (5325, 24081), (8027, 15975), (8165, 15705), (8725, 14697)]