16195640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{353}}^1$

素因数の和:432

約数の個数: 64

約数和(自身を含む): 38741760

約数和(自身を除く): 22546120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 353, 370, 620, 706, 740, 1147, 1240, 1412, 1480, 1765, 2294, 2824, 3530, 4588, 5735, 7060, 9176, 10943, 11470, 13061, 14120, 21886, 22940, 26122, 43772, 45880, 52244, 54715, 65305, 87544, 104488, 109430, 130610, 218860, 261220, 404891, 437720, 522440, 809782, 1619564, 2024455, 3239128, 4048910, 8097820, 16195640]

約数ペア:

[(1, 16195640), (2, 8097820), (4, 4048910), (5, 3239128), (8, 2024455), (10, 1619564), (20, 809782), (31, 522440), (37, 437720), (40, 404891), (62, 261220), (74, 218860), (124, 130610), (148, 109430), (155, 104488), (185, 87544), (248, 65305), (296, 54715), (310, 52244), (353, 45880), (370, 43772), (620, 26122), (706, 22940), (740, 21886), (1147, 14120), (1240, 13061), (1412, 11470), (1480, 10943), (1765, 9176), (2294, 7060), (2824, 5735), (3530, 4588)]