30513920

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{769}}^1$

素因数の和:821

約数の個数: 72

約数和(自身を含む): 75546240

約数和(自身を除く): 45032320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 769, 992, 1240, 1280, 1538, 1984, 2480, 3076, 3845, 3968, 4960, 6152, 7690, 7936, 9920, 12304, 15380, 19840, 23839, 24608, 30760, 39680, 47678, 49216, 61520, 95356, 98432, 119195, 123040, 190712, 196864, 238390, 246080, 381424, 476780, 492160, 762848, 953560, 984320, 1525696, 1907120, 3051392, 3814240, 6102784, 7628480, 15256960, 30513920]

約数ペア:

[(1, 30513920), (2, 15256960), (4, 7628480), (5, 6102784), (8, 3814240), (10, 3051392), (16, 1907120), (20, 1525696), (31, 984320), (32, 953560), (40, 762848), (62, 492160), (64, 476780), (80, 381424), (124, 246080), (128, 238390), (155, 196864), (160, 190712), (248, 123040), (256, 119195), (310, 98432), (320, 95356), (496, 61520), (620, 49216), (640, 47678), (769, 39680), (992, 30760), (1240, 24608), (1280, 23839), (1538, 19840), (1984, 15380), (2480, 12304), (3076, 9920), (3845, 7936), (3968, 7690), (4960, 6152)]