78875920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{983}}^1$

素因数の和:1072

約数の個数: 80

約数和(自身を含む): 197665920

約数和(自身を除く): 118790000

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 59, 68, 80, 85, 118, 136, 170, 236, 272, 295, 340, 472, 590, 680, 944, 983, 1003, 1180, 1360, 1966, 2006, 2360, 3932, 4012, 4720, 4915, 5015, 7864, 8024, 9830, 10030, 15728, 16048, 16711, 19660, 20060, 33422, 39320, 40120, 57997, 66844, 78640, 80240, 83555, 115994, 133688, 167110, 231988, 267376, 289985, 334220, 463976, 579970, 668440, 927952, 985949, 1159940, 1336880, 1971898, 2319880, 3943796, 4639760, 4929745, 7887592, 9859490, 15775184, 19718980, 39437960, 78875920]

約数ペア:

[(1, 78875920), (2, 39437960), (4, 19718980), (5, 15775184), (8, 9859490), (10, 7887592), (16, 4929745), (17, 4639760), (20, 3943796), (34, 2319880), (40, 1971898), (59, 1336880), (68, 1159940), (80, 985949), (85, 927952), (118, 668440), (136, 579970), (170, 463976), (236, 334220), (272, 289985), (295, 267376), (340, 231988), (472, 167110), (590, 133688), (680, 115994), (944, 83555), (983, 80240), (1003, 78640), (1180, 66844), (1360, 57997), (1966, 40120), (2006, 39320), (2360, 33422), (3932, 20060), (4012, 19660), (4720, 16711), (4915, 16048), (5015, 15728), (7864, 10030), (8024, 9830)]