81138928

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{811}}^1$

素因数の和:882

約数の個数: 60

約数和(自身を含む): 175046088

約数和(自身を除く): 93907160

約数列:

[1, 2, 4, 8, 13, 16, 26, 37, 52, 74, 104, 148, 169, 208, 296, 338, 481, 592, 676, 811, 962, 1352, 1622, 1924, 2704, 3244, 3848, 6253, 6488, 7696, 10543, 12506, 12976, 21086, 25012, 30007, 42172, 50024, 60014, 84344, 100048, 120028, 137059, 168688, 240056, 274118, 390091, 480112, 548236, 780182, 1096472, 1560364, 2192944, 3120728, 5071183, 6241456, 10142366, 20284732, 40569464, 81138928]

約数ペア:

[(1, 81138928), (2, 40569464), (4, 20284732), (8, 10142366), (13, 6241456), (16, 5071183), (26, 3120728), (37, 2192944), (52, 1560364), (74, 1096472), (104, 780182), (148, 548236), (169, 480112), (208, 390091), (296, 274118), (338, 240056), (481, 168688), (592, 137059), (676, 120028), (811, 100048), (962, 84344), (1352, 60014), (1622, 50024), (1924, 42172), (2704, 30007), (3244, 25012), (3848, 21086), (6253, 12976), (6488, 12506), (7696, 10543)]