179948740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:397

約数の個数: 72

約数和(自身を含む): 406006272

約数和(自身を除く): 226057532

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 163, 170, 191, 289, 326, 340, 382, 578, 652, 764, 815, 955, 1156, 1445, 1630, 1910, 2771, 2890, 3247, 3260, 3820, 5542, 5780, 6494, 11084, 12988, 13855, 16235, 27710, 31133, 32470, 47107, 55199, 55420, 62266, 64940, 94214, 110398, 124532, 155665, 188428, 220796, 235535, 275995, 311330, 471070, 529261, 551990, 622660, 942140, 1058522, 1103980, 2117044, 2646305, 5292610, 8997437, 10585220, 17994874, 35989748, 44987185, 89974370, 179948740]

約数ペア:

[(1, 179948740), (2, 89974370), (4, 44987185), (5, 35989748), (10, 17994874), (17, 10585220), (20, 8997437), (34, 5292610), (68, 2646305), (85, 2117044), (163, 1103980), (170, 1058522), (191, 942140), (289, 622660), (326, 551990), (340, 529261), (382, 471070), (578, 311330), (652, 275995), (764, 235535), (815, 220796), (955, 188428), (1156, 155665), (1445, 124532), (1630, 110398), (1910, 94214), (2771, 64940), (2890, 62266), (3247, 55420), (3260, 55199), (3820, 47107), (5542, 32470), (5780, 31133), (6494, 27710), (11084, 16235), (12988, 13855)]