18860880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{883}}^1$

素因数の和:988

約数の個数: 80

約数和(自身を含む): 59192640

約数和(自身を除く): 40331760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 89, 120, 178, 240, 267, 356, 445, 534, 712, 883, 890, 1068, 1335, 1424, 1766, 1780, 2136, 2649, 2670, 3532, 3560, 4272, 4415, 5298, 5340, 7064, 7120, 8830, 10596, 10680, 13245, 14128, 17660, 21192, 21360, 26490, 35320, 42384, 52980, 70640, 78587, 105960, 157174, 211920, 235761, 314348, 392935, 471522, 628696, 785870, 943044, 1178805, 1257392, 1571740, 1886088, 2357610, 3143480, 3772176, 4715220, 6286960, 9430440, 18860880]

約数ペア:

[(1, 18860880), (2, 9430440), (3, 6286960), (4, 4715220), (5, 3772176), (6, 3143480), (8, 2357610), (10, 1886088), (12, 1571740), (15, 1257392), (16, 1178805), (20, 943044), (24, 785870), (30, 628696), (40, 471522), (48, 392935), (60, 314348), (80, 235761), (89, 211920), (120, 157174), (178, 105960), (240, 78587), (267, 70640), (356, 52980), (445, 42384), (534, 35320), (712, 26490), (883, 21360), (890, 21192), (1068, 17660), (1335, 14128), (1424, 13245), (1766, 10680), (1780, 10596), (2136, 8830), (2649, 7120), (2670, 7064), (3532, 5340), (3560, 5298), (4272, 4415)]