171323380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:497

約数の個数: 72

約数和(自身を含む): 386928360

約数和(自身を除く): 215604980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 244, 305, 361, 380, 389, 610, 722, 778, 1159, 1220, 1444, 1556, 1805, 1945, 2318, 3610, 3890, 4636, 5795, 7220, 7391, 7780, 11590, 14782, 22021, 23180, 23729, 29564, 36955, 44042, 47458, 73910, 88084, 94916, 110105, 118645, 140429, 147820, 220210, 237290, 280858, 440420, 450851, 474580, 561716, 702145, 901702, 1404290, 1803404, 2254255, 2808580, 4508510, 8566169, 9017020, 17132338, 34264676, 42830845, 85661690, 171323380]

約数ペア:

[(1, 171323380), (2, 85661690), (4, 42830845), (5, 34264676), (10, 17132338), (19, 9017020), (20, 8566169), (38, 4508510), (61, 2808580), (76, 2254255), (95, 1803404), (122, 1404290), (190, 901702), (244, 702145), (305, 561716), (361, 474580), (380, 450851), (389, 440420), (610, 280858), (722, 237290), (778, 220210), (1159, 147820), (1220, 140429), (1444, 118645), (1556, 110105), (1805, 94916), (1945, 88084), (2318, 73910), (3610, 47458), (3890, 44042), (4636, 36955), (5795, 29564), (7220, 23729), (7391, 23180), (7780, 22021), (11590, 14782)]