17651920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1543}}^1$

素因数の和:1580

約数の個数: 80

約数和(自身を含む): 48246912

約数和(自身を除く): 30594992

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 1543, 2288, 2860, 3086, 5720, 6172, 7715, 11440, 12344, 15430, 16973, 20059, 24688, 30860, 33946, 40118, 61720, 67892, 80236, 84865, 100295, 123440, 135784, 160472, 169730, 200590, 220649, 271568, 320944, 339460, 401180, 441298, 678920, 802360, 882596, 1103245, 1357840, 1604720, 1765192, 2206490, 3530384, 4412980, 8825960, 17651920]

約数ペア:

[(1, 17651920), (2, 8825960), (4, 4412980), (5, 3530384), (8, 2206490), (10, 1765192), (11, 1604720), (13, 1357840), (16, 1103245), (20, 882596), (22, 802360), (26, 678920), (40, 441298), (44, 401180), (52, 339460), (55, 320944), (65, 271568), (80, 220649), (88, 200590), (104, 169730), (110, 160472), (130, 135784), (143, 123440), (176, 100295), (208, 84865), (220, 80236), (260, 67892), (286, 61720), (440, 40118), (520, 33946), (572, 30860), (715, 24688), (880, 20059), (1040, 16973), (1144, 15430), (1430, 12344), (1543, 11440), (2288, 7715), (2860, 6172), (3086, 5720)]