178160720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:281

約数の個数: 120

約数和(自身を含む): 453542400

約数和(自身を除く): 275381680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 199, 248, 304, 310, 361, 380, 398, 496, 589, 620, 722, 760, 796, 995, 1178, 1240, 1444, 1520, 1592, 1805, 1990, 2356, 2480, 2888, 2945, 3184, 3610, 3781, 3980, 4712, 5776, 5890, 6169, 7220, 7562, 7960, 9424, 11191, 11780, 12338, 14440, 15124, 15920, 18905, 22382, 23560, 24676, 28880, 30248, 30845, 37810, 44764, 47120, 49352, 55955, 60496, 61690, 71839, 75620, 89528, 98704, 111910, 117211, 123380, 143678, 151240, 179056, 223820, 234422, 246760, 287356, 302480, 359195, 447640, 468844, 493520, 574712, 586055, 718390, 895280, 937688, 1149424, 1172110, 1436780, 1875376, 2227009, 2344220, 2873560, 4454018, 4688440, 5747120, 8908036, 9376880, 11135045, 17816072, 22270090, 35632144, 44540180, 89080360, 178160720]

約数ペア:

[(1, 178160720), (2, 89080360), (4, 44540180), (5, 35632144), (8, 22270090), (10, 17816072), (16, 11135045), (19, 9376880), (20, 8908036), (31, 5747120), (38, 4688440), (40, 4454018), (62, 2873560), (76, 2344220), (80, 2227009), (95, 1875376), (124, 1436780), (152, 1172110), (155, 1149424), (190, 937688), (199, 895280), (248, 718390), (304, 586055), (310, 574712), (361, 493520), (380, 468844), (398, 447640), (496, 359195), (589, 302480), (620, 287356), (722, 246760), (760, 234422), (796, 223820), (995, 179056), (1178, 151240), (1240, 143678), (1444, 123380), (1520, 117211), (1592, 111910), (1805, 98704), (1990, 89528), (2356, 75620), (2480, 71839), (2888, 61690), (2945, 60496), (3184, 55955), (3610, 49352), (3781, 47120), (3980, 44764), (4712, 37810), (5776, 30845), (5890, 30248), (6169, 28880), (7220, 24676), (7562, 23560), (7960, 22382), (9424, 18905), (11191, 15920), (11780, 15124), (12338, 14440)]