31188920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1$

素因数の和:237

約数の個数: 128

約数和(自身を含む): 87091200

約数和(自身を除く): 55902280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 29, 35, 40, 46, 56, 58, 70, 92, 115, 116, 140, 145, 161, 167, 184, 203, 230, 232, 280, 290, 322, 334, 406, 460, 580, 644, 667, 668, 805, 812, 835, 920, 1015, 1160, 1169, 1288, 1334, 1336, 1610, 1624, 1670, 2030, 2338, 2668, 3220, 3335, 3340, 3841, 4060, 4669, 4676, 4843, 5336, 5845, 6440, 6670, 6680, 7682, 8120, 9338, 9352, 9686, 11690, 13340, 15364, 18676, 19205, 19372, 23345, 23380, 24215, 26680, 26887, 30728, 33901, 37352, 38410, 38744, 46690, 46760, 48430, 53774, 67802, 76820, 93380, 96860, 107548, 111389, 134435, 135604, 153640, 169505, 186760, 193720, 215096, 222778, 268870, 271208, 339010, 445556, 537740, 556945, 678020, 779723, 891112, 1075480, 1113890, 1356040, 1559446, 2227780, 3118892, 3898615, 4455560, 6237784, 7797230, 15594460, 31188920]

約数ペア:

[(1, 31188920), (2, 15594460), (4, 7797230), (5, 6237784), (7, 4455560), (8, 3898615), (10, 3118892), (14, 2227780), (20, 1559446), (23, 1356040), (28, 1113890), (29, 1075480), (35, 891112), (40, 779723), (46, 678020), (56, 556945), (58, 537740), (70, 445556), (92, 339010), (115, 271208), (116, 268870), (140, 222778), (145, 215096), (161, 193720), (167, 186760), (184, 169505), (203, 153640), (230, 135604), (232, 134435), (280, 111389), (290, 107548), (322, 96860), (334, 93380), (406, 76820), (460, 67802), (580, 53774), (644, 48430), (667, 46760), (668, 46690), (805, 38744), (812, 38410), (835, 37352), (920, 33901), (1015, 30728), (1160, 26887), (1169, 26680), (1288, 24215), (1334, 23380), (1336, 23345), (1610, 19372), (1624, 19205), (1670, 18676), (2030, 15364), (2338, 13340), (2668, 11690), (3220, 9686), (3335, 9352), (3340, 9338), (3841, 8120), (4060, 7682), (4669, 6680), (4676, 6670), (4843, 6440), (5336, 5845)]