138598480

素因数分解:

$2^4\times 5^1\times {\mathrm{661}}^1\times {\mathrm{2621}}^1$

素因数の和:3295

約数の個数: 40

約数和(自身を含む): 322852104

約数和(自身を除く): 184253624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 661, 1322, 2621, 2644, 3305, 5242, 5288, 6610, 10484, 10576, 13105, 13220, 20968, 26210, 26440, 41936, 52420, 52880, 104840, 209680, 1732481, 3464962, 6929924, 8662405, 13859848, 17324810, 27719696, 34649620, 69299240, 138598480]

約数ペア:

[(1, 138598480), (2, 69299240), (4, 34649620), (5, 27719696), (8, 17324810), (10, 13859848), (16, 8662405), (20, 6929924), (40, 3464962), (80, 1732481), (661, 209680), (1322, 104840), (2621, 52880), (2644, 52420), (3305, 41936), (5242, 26440), (5288, 26210), (6610, 20968), (10484, 13220), (10576, 13105)]