18624825

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 35979840

約数和(自身を除く): 17355015

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 59, 61, 69, 75, 115, 177, 183, 207, 225, 295, 305, 345, 531, 549, 575, 885, 915, 1035, 1357, 1403, 1475, 1525, 1725, 2655, 2745, 3599, 4071, 4209, 4425, 4575, 5175, 6785, 7015, 10797, 12213, 12627, 13275, 13725, 17995, 20355, 21045, 32391, 33925, 35075, 53985, 61065, 63135, 82777, 89975, 101775, 105225, 161955, 248331, 269925, 305325, 315675, 413885, 744993, 809775, 1241655, 2069425, 3724965, 6208275, 18624825]

約数ペア:

[(1, 18624825), (3, 6208275), (5, 3724965), (9, 2069425), (15, 1241655), (23, 809775), (25, 744993), (45, 413885), (59, 315675), (61, 305325), (69, 269925), (75, 248331), (115, 161955), (177, 105225), (183, 101775), (207, 89975), (225, 82777), (295, 63135), (305, 61065), (345, 53985), (531, 35075), (549, 33925), (575, 32391), (885, 21045), (915, 20355), (1035, 17995), (1357, 13725), (1403, 13275), (1475, 12627), (1525, 12213), (1725, 10797), (2655, 7015), (2745, 6785), (3599, 5175), (4071, 4575), (4209, 4425)]