28724240

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{233}}^1$

素因数の和:336

約数の個数: 80

約数和(自身を含む): 71031168

約数和(自身を除く): 42306928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 67, 80, 92, 115, 134, 184, 230, 233, 268, 335, 368, 460, 466, 536, 670, 920, 932, 1072, 1165, 1340, 1541, 1840, 1864, 2330, 2680, 3082, 3728, 4660, 5359, 5360, 6164, 7705, 9320, 10718, 12328, 15410, 15611, 18640, 21436, 24656, 26795, 30820, 31222, 42872, 53590, 61640, 62444, 78055, 85744, 107180, 123280, 124888, 156110, 214360, 249776, 312220, 359053, 428720, 624440, 718106, 1248880, 1436212, 1795265, 2872424, 3590530, 5744848, 7181060, 14362120, 28724240]

約数ペア:

[(1, 28724240), (2, 14362120), (4, 7181060), (5, 5744848), (8, 3590530), (10, 2872424), (16, 1795265), (20, 1436212), (23, 1248880), (40, 718106), (46, 624440), (67, 428720), (80, 359053), (92, 312220), (115, 249776), (134, 214360), (184, 156110), (230, 124888), (233, 123280), (268, 107180), (335, 85744), (368, 78055), (460, 62444), (466, 61640), (536, 53590), (670, 42872), (920, 31222), (932, 30820), (1072, 26795), (1165, 24656), (1340, 21436), (1541, 18640), (1840, 15611), (1864, 15410), (2330, 12328), (2680, 10718), (3082, 9320), (3728, 7705), (4660, 6164), (5359, 5360)]