78305900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:395

約数の個数: 72

約数和(自身を含む): 177176160

約数和(自身を除く): 98870260

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 71, 82, 100, 142, 164, 205, 269, 284, 355, 410, 538, 710, 820, 1025, 1076, 1345, 1420, 1775, 2050, 2690, 2911, 3550, 4100, 5380, 5822, 6725, 7100, 11029, 11644, 13450, 14555, 19099, 22058, 26900, 29110, 38198, 44116, 55145, 58220, 72775, 76396, 95495, 110290, 145550, 190990, 220580, 275725, 291100, 381980, 477475, 551450, 783059, 954950, 1102900, 1566118, 1909900, 3132236, 3915295, 7830590, 15661180, 19576475, 39152950, 78305900]

約数ペア:

[(1, 78305900), (2, 39152950), (4, 19576475), (5, 15661180), (10, 7830590), (20, 3915295), (25, 3132236), (41, 1909900), (50, 1566118), (71, 1102900), (82, 954950), (100, 783059), (142, 551450), (164, 477475), (205, 381980), (269, 291100), (284, 275725), (355, 220580), (410, 190990), (538, 145550), (710, 110290), (820, 95495), (1025, 76396), (1076, 72775), (1345, 58220), (1420, 55145), (1775, 44116), (2050, 38198), (2690, 29110), (2911, 26900), (3550, 22058), (4100, 19099), (5380, 14555), (5822, 13450), (6725, 11644), (7100, 11029)]