18975320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{401}}^1$

素因数の和:445

約数の個数: 96

約数和(自身を含む): 52967520

約数和(自身を除く): 33992200

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 169, 182, 260, 280, 338, 364, 401, 455, 520, 676, 728, 802, 845, 910, 1183, 1352, 1604, 1690, 1820, 2005, 2366, 2807, 3208, 3380, 3640, 4010, 4732, 5213, 5614, 5915, 6760, 8020, 9464, 10426, 11228, 11830, 14035, 16040, 20852, 22456, 23660, 26065, 28070, 36491, 41704, 47320, 52130, 56140, 67769, 72982, 104260, 112280, 135538, 145964, 182455, 208520, 271076, 291928, 338845, 364910, 474383, 542152, 677690, 729820, 948766, 1355380, 1459640, 1897532, 2371915, 2710760, 3795064, 4743830, 9487660, 18975320]

約数ペア:

[(1, 18975320), (2, 9487660), (4, 4743830), (5, 3795064), (7, 2710760), (8, 2371915), (10, 1897532), (13, 1459640), (14, 1355380), (20, 948766), (26, 729820), (28, 677690), (35, 542152), (40, 474383), (52, 364910), (56, 338845), (65, 291928), (70, 271076), (91, 208520), (104, 182455), (130, 145964), (140, 135538), (169, 112280), (182, 104260), (260, 72982), (280, 67769), (338, 56140), (364, 52130), (401, 47320), (455, 41704), (520, 36491), (676, 28070), (728, 26065), (802, 23660), (845, 22456), (910, 20852), (1183, 16040), (1352, 14035), (1604, 11830), (1690, 11228), (1820, 10426), (2005, 9464), (2366, 8020), (2807, 6760), (3208, 5915), (3380, 5614), (3640, 5213), (4010, 4732)]