1617702920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1\times {\mathrm{2003}}^1$

素因数の和:2406

約数の個数: 64

約数和(自身を含む): 3712530240

約数和(自身を除く): 2094827320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 331, 488, 610, 662, 1220, 1324, 1655, 2003, 2440, 2648, 3310, 4006, 6620, 8012, 10015, 13240, 16024, 20030, 20191, 40060, 40382, 80120, 80764, 100955, 122183, 161528, 201910, 244366, 403820, 488732, 610915, 662993, 807640, 977464, 1221830, 1325986, 2443660, 2651972, 3314965, 4887320, 5303944, 6629930, 13259860, 26519720, 40442573, 80885146, 161770292, 202212865, 323540584, 404425730, 808851460, 1617702920]

約数ペア:

[(1, 1617702920), (2, 808851460), (4, 404425730), (5, 323540584), (8, 202212865), (10, 161770292), (20, 80885146), (40, 40442573), (61, 26519720), (122, 13259860), (244, 6629930), (305, 5303944), (331, 4887320), (488, 3314965), (610, 2651972), (662, 2443660), (1220, 1325986), (1324, 1221830), (1655, 977464), (2003, 807640), (2440, 662993), (2648, 610915), (3310, 488732), (4006, 403820), (6620, 244366), (8012, 201910), (10015, 161528), (13240, 122183), (16024, 100955), (20030, 80764), (20191, 80120), (40060, 40382)]