199835920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4241}}^1$

素因数の和:4304

約数の個数: 80

約数和(自身を含む): 504967680

約数和(自身を除く): 305131760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 760, 1178, 1240, 1520, 2356, 2480, 2945, 4241, 4712, 5890, 8482, 9424, 11780, 16964, 21205, 23560, 33928, 42410, 47120, 67856, 80579, 84820, 131471, 161158, 169640, 262942, 322316, 339280, 402895, 525884, 644632, 657355, 805790, 1051768, 1289264, 1314710, 1611580, 2103536, 2497949, 2629420, 3223160, 4995898, 5258840, 6446320, 9991796, 10517680, 12489745, 19983592, 24979490, 39967184, 49958980, 99917960, 199835920]

約数ペア:

[(1, 199835920), (2, 99917960), (4, 49958980), (5, 39967184), (8, 24979490), (10, 19983592), (16, 12489745), (19, 10517680), (20, 9991796), (31, 6446320), (38, 5258840), (40, 4995898), (62, 3223160), (76, 2629420), (80, 2497949), (95, 2103536), (124, 1611580), (152, 1314710), (155, 1289264), (190, 1051768), (248, 805790), (304, 657355), (310, 644632), (380, 525884), (496, 402895), (589, 339280), (620, 322316), (760, 262942), (1178, 169640), (1240, 161158), (1520, 131471), (2356, 84820), (2480, 80579), (2945, 67856), (4241, 47120), (4712, 42410), (5890, 33928), (8482, 23560), (9424, 21205), (11780, 16964)]