87817240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{971}}^1$

素因数の和:1025

約数の個数: 128

約数和(自身を含む): 251942400

約数和(自身を除く): 164125160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 19, 20, 28, 34, 35, 38, 40, 56, 68, 70, 76, 85, 95, 119, 133, 136, 140, 152, 170, 190, 238, 266, 280, 323, 340, 380, 476, 532, 595, 646, 665, 680, 760, 952, 971, 1064, 1190, 1292, 1330, 1615, 1942, 2261, 2380, 2584, 2660, 3230, 3884, 4522, 4760, 4855, 5320, 6460, 6797, 7768, 9044, 9710, 11305, 12920, 13594, 16507, 18088, 18449, 19420, 22610, 27188, 33014, 33985, 36898, 38840, 45220, 54376, 66028, 67970, 73796, 82535, 90440, 92245, 115549, 129143, 132056, 135940, 147592, 165070, 184490, 231098, 258286, 271880, 313633, 330140, 368980, 462196, 516572, 577745, 627266, 645715, 660280, 737960, 924392, 1033144, 1155490, 1254532, 1291430, 1568165, 2195431, 2310980, 2509064, 2582860, 3136330, 4390862, 4621960, 5165720, 6272660, 8781724, 10977155, 12545320, 17563448, 21954310, 43908620, 87817240]

約数ペア:

[(1, 87817240), (2, 43908620), (4, 21954310), (5, 17563448), (7, 12545320), (8, 10977155), (10, 8781724), (14, 6272660), (17, 5165720), (19, 4621960), (20, 4390862), (28, 3136330), (34, 2582860), (35, 2509064), (38, 2310980), (40, 2195431), (56, 1568165), (68, 1291430), (70, 1254532), (76, 1155490), (85, 1033144), (95, 924392), (119, 737960), (133, 660280), (136, 645715), (140, 627266), (152, 577745), (170, 516572), (190, 462196), (238, 368980), (266, 330140), (280, 313633), (323, 271880), (340, 258286), (380, 231098), (476, 184490), (532, 165070), (595, 147592), (646, 135940), (665, 132056), (680, 129143), (760, 115549), (952, 92245), (971, 90440), (1064, 82535), (1190, 73796), (1292, 67970), (1330, 66028), (1615, 54376), (1942, 45220), (2261, 38840), (2380, 36898), (2584, 33985), (2660, 33014), (3230, 27188), (3884, 22610), (4522, 19420), (4760, 18449), (4855, 18088), (5320, 16507), (6460, 13594), (6797, 12920), (7768, 11305), (9044, 9710)]