18742750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:182

約数の個数: 64

約数和(自身を含む): 38787840

約数和(自身を除く): 20045090

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 73, 79, 125, 130, 146, 158, 250, 325, 365, 395, 650, 730, 790, 949, 1027, 1625, 1825, 1898, 1975, 2054, 3250, 3650, 3950, 4745, 5135, 5767, 9125, 9490, 9875, 10270, 11534, 18250, 19750, 23725, 25675, 28835, 47450, 51350, 57670, 74971, 118625, 128375, 144175, 149942, 237250, 256750, 288350, 374855, 720875, 749710, 1441750, 1874275, 3748550, 9371375, 18742750]

約数ペア:

[(1, 18742750), (2, 9371375), (5, 3748550), (10, 1874275), (13, 1441750), (25, 749710), (26, 720875), (50, 374855), (65, 288350), (73, 256750), (79, 237250), (125, 149942), (130, 144175), (146, 128375), (158, 118625), (250, 74971), (325, 57670), (365, 51350), (395, 47450), (650, 28835), (730, 25675), (790, 23725), (949, 19750), (1027, 18250), (1625, 11534), (1825, 10270), (1898, 9875), (1975, 9490), (2054, 9125), (3250, 5767), (3650, 5135), (3950, 4745)]