815305040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{54499}}^1$

素因数の和:54540

約数の個数: 80

約数和(自身を含む): 2189592000

約数和(自身を除く): 1374286960

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1496, 1870, 2992, 3740, 7480, 14960, 54499, 108998, 217996, 272495, 435992, 544990, 599489, 871984, 926483, 1089980, 1198978, 1852966, 2179960, 2397956, 2997445, 3705932, 4359920, 4632415, 4795912, 5994890, 7411864, 9264830, 9591824, 10191313, 11989780, 14823728, 18529660, 20382626, 23979560, 37059320, 40765252, 47959120, 50956565, 74118640, 81530504, 101913130, 163061008, 203826260, 407652520, 815305040]

約数ペア:

[(1, 815305040), (2, 407652520), (4, 203826260), (5, 163061008), (8, 101913130), (10, 81530504), (11, 74118640), (16, 50956565), (17, 47959120), (20, 40765252), (22, 37059320), (34, 23979560), (40, 20382626), (44, 18529660), (55, 14823728), (68, 11989780), (80, 10191313), (85, 9591824), (88, 9264830), (110, 7411864), (136, 5994890), (170, 4795912), (176, 4632415), (187, 4359920), (220, 3705932), (272, 2997445), (340, 2397956), (374, 2179960), (440, 1852966), (680, 1198978), (748, 1089980), (880, 926483), (935, 871984), (1360, 599489), (1496, 544990), (1870, 435992), (2992, 272495), (3740, 217996), (7480, 108998), (14960, 54499)]