18242680

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:364

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 25302920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 79, 92, 115, 158, 184, 230, 251, 316, 395, 460, 502, 632, 790, 920, 1004, 1255, 1580, 1817, 2008, 2510, 3160, 3634, 5020, 5773, 7268, 9085, 10040, 11546, 14536, 18170, 19829, 23092, 28865, 36340, 39658, 46184, 57730, 72680, 79316, 99145, 115460, 158632, 198290, 230920, 396580, 456067, 793160, 912134, 1824268, 2280335, 3648536, 4560670, 9121340, 18242680]

約数ペア:

[(1, 18242680), (2, 9121340), (4, 4560670), (5, 3648536), (8, 2280335), (10, 1824268), (20, 912134), (23, 793160), (40, 456067), (46, 396580), (79, 230920), (92, 198290), (115, 158632), (158, 115460), (184, 99145), (230, 79316), (251, 72680), (316, 57730), (395, 46184), (460, 39658), (502, 36340), (632, 28865), (790, 23092), (920, 19829), (1004, 18170), (1255, 14536), (1580, 11546), (1817, 10040), (2008, 9085), (2510, 7268), (3160, 5773), (3634, 5020)]