30397720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:137

約数の個数: 128

約数和(自身を含む): 78796800

約数和(自身を除く): 48399080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 37, 38, 40, 46, 47, 74, 76, 92, 94, 95, 115, 148, 152, 184, 185, 188, 190, 230, 235, 296, 370, 376, 380, 437, 460, 470, 703, 740, 760, 851, 874, 893, 920, 940, 1081, 1406, 1480, 1702, 1739, 1748, 1786, 1880, 2162, 2185, 2812, 3404, 3478, 3496, 3515, 3572, 4255, 4324, 4370, 4465, 5405, 5624, 6808, 6956, 7030, 7144, 8510, 8648, 8695, 8740, 8930, 10810, 13912, 14060, 16169, 17020, 17390, 17480, 17860, 20539, 21620, 28120, 32338, 33041, 34040, 34780, 35720, 39997, 41078, 43240, 64676, 66082, 69560, 79994, 80845, 82156, 102695, 129352, 132164, 159988, 161690, 164312, 165205, 199985, 205390, 264328, 319976, 323380, 330410, 399970, 410780, 646760, 660820, 759943, 799940, 821560, 1321640, 1519886, 1599880, 3039772, 3799715, 6079544, 7599430, 15198860, 30397720]

約数ペア:

[(1, 30397720), (2, 15198860), (4, 7599430), (5, 6079544), (8, 3799715), (10, 3039772), (19, 1599880), (20, 1519886), (23, 1321640), (37, 821560), (38, 799940), (40, 759943), (46, 660820), (47, 646760), (74, 410780), (76, 399970), (92, 330410), (94, 323380), (95, 319976), (115, 264328), (148, 205390), (152, 199985), (184, 165205), (185, 164312), (188, 161690), (190, 159988), (230, 132164), (235, 129352), (296, 102695), (370, 82156), (376, 80845), (380, 79994), (437, 69560), (460, 66082), (470, 64676), (703, 43240), (740, 41078), (760, 39997), (851, 35720), (874, 34780), (893, 34040), (920, 33041), (940, 32338), (1081, 28120), (1406, 21620), (1480, 20539), (1702, 17860), (1739, 17480), (1748, 17390), (1786, 17020), (1880, 16169), (2162, 14060), (2185, 13912), (2812, 10810), (3404, 8930), (3478, 8740), (3496, 8695), (3515, 8648), (3572, 8510), (4255, 7144), (4324, 7030), (4370, 6956), (4465, 6808), (5405, 5624)]