18500800

素因数分解:

$2^6\times 5^2\times {\mathrm{31}}^1\times {\mathrm{373}}^1$

素因数の和:426

約数の個数: 84

約数和(自身を含む): 47118016

約数和(自身を除く): 28617216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 155, 160, 200, 248, 310, 320, 373, 400, 496, 620, 746, 775, 800, 992, 1240, 1492, 1550, 1600, 1865, 1984, 2480, 2984, 3100, 3730, 4960, 5968, 6200, 7460, 9325, 9920, 11563, 11936, 12400, 14920, 18650, 23126, 23872, 24800, 29840, 37300, 46252, 49600, 57815, 59680, 74600, 92504, 115630, 119360, 149200, 185008, 231260, 289075, 298400, 370016, 462520, 578150, 596800, 740032, 925040, 1156300, 1850080, 2312600, 3700160, 4625200, 9250400, 18500800]

約数ペア:

[(1, 18500800), (2, 9250400), (4, 4625200), (5, 3700160), (8, 2312600), (10, 1850080), (16, 1156300), (20, 925040), (25, 740032), (31, 596800), (32, 578150), (40, 462520), (50, 370016), (62, 298400), (64, 289075), (80, 231260), (100, 185008), (124, 149200), (155, 119360), (160, 115630), (200, 92504), (248, 74600), (310, 59680), (320, 57815), (373, 49600), (400, 46252), (496, 37300), (620, 29840), (746, 24800), (775, 23872), (800, 23126), (992, 18650), (1240, 14920), (1492, 12400), (1550, 11936), (1600, 11563), (1865, 9920), (1984, 9325), (2480, 7460), (2984, 6200), (3100, 5968), (3730, 4960)]