21818240

素因数分解:

$2^7\times 5^1\times {\mathrm{73}}^1\times {\mathrm{467}}^1$

素因数の和:559

約数の個数: 64

約数和(自身を含む): 52986960

約数和(自身を除く): 31168720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 128, 146, 160, 292, 320, 365, 467, 584, 640, 730, 934, 1168, 1460, 1868, 2335, 2336, 2920, 3736, 4670, 4672, 5840, 7472, 9340, 9344, 11680, 14944, 18680, 23360, 29888, 34091, 37360, 46720, 59776, 68182, 74720, 136364, 149440, 170455, 272728, 298880, 340910, 545456, 681820, 1090912, 1363640, 2181824, 2727280, 4363648, 5454560, 10909120, 21818240]

約数ペア:

[(1, 21818240), (2, 10909120), (4, 5454560), (5, 4363648), (8, 2727280), (10, 2181824), (16, 1363640), (20, 1090912), (32, 681820), (40, 545456), (64, 340910), (73, 298880), (80, 272728), (128, 170455), (146, 149440), (160, 136364), (292, 74720), (320, 68182), (365, 59776), (467, 46720), (584, 37360), (640, 34091), (730, 29888), (934, 23360), (1168, 18680), (1460, 14944), (1868, 11680), (2335, 9344), (2336, 9340), (2920, 7472), (3736, 5840), (4670, 4672)]