28156480

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:468

約数の個数: 112

約数和(自身を含む): 77175360

約数和(自身を除く): 49018880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 64, 76, 80, 88, 95, 110, 152, 160, 176, 190, 209, 220, 304, 320, 352, 380, 418, 421, 440, 608, 704, 760, 836, 842, 880, 1045, 1216, 1520, 1672, 1684, 1760, 2090, 2105, 3040, 3344, 3368, 3520, 4180, 4210, 4631, 6080, 6688, 6736, 7999, 8360, 8420, 9262, 13376, 13472, 15998, 16720, 16840, 18524, 23155, 26944, 31996, 33440, 33680, 37048, 39995, 46310, 63992, 66880, 67360, 74096, 79990, 87989, 92620, 127984, 134720, 148192, 159980, 175978, 185240, 255968, 296384, 319960, 351956, 370480, 439945, 511936, 639920, 703912, 740960, 879890, 1279840, 1407824, 1481920, 1759780, 2559680, 2815648, 3519560, 5631296, 7039120, 14078240, 28156480]

約数ペア:

[(1, 28156480), (2, 14078240), (4, 7039120), (5, 5631296), (8, 3519560), (10, 2815648), (11, 2559680), (16, 1759780), (19, 1481920), (20, 1407824), (22, 1279840), (32, 879890), (38, 740960), (40, 703912), (44, 639920), (55, 511936), (64, 439945), (76, 370480), (80, 351956), (88, 319960), (95, 296384), (110, 255968), (152, 185240), (160, 175978), (176, 159980), (190, 148192), (209, 134720), (220, 127984), (304, 92620), (320, 87989), (352, 79990), (380, 74096), (418, 67360), (421, 66880), (440, 63992), (608, 46310), (704, 39995), (760, 37048), (836, 33680), (842, 33440), (880, 31996), (1045, 26944), (1216, 23155), (1520, 18524), (1672, 16840), (1684, 16720), (1760, 15998), (2090, 13472), (2105, 13376), (3040, 9262), (3344, 8420), (3368, 8360), (3520, 7999), (4180, 6736), (4210, 6688), (4631, 6080)]