209205180

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1451}}^1$

素因数の和:1561

約数の個数: 120

約数和(自身を含む): 664115760

約数和(自身を除く): 454910580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 89, 90, 108, 135, 162, 178, 180, 267, 270, 324, 356, 405, 445, 534, 540, 801, 810, 890, 1068, 1335, 1451, 1602, 1620, 1780, 2403, 2670, 2902, 3204, 4005, 4353, 4806, 5340, 5804, 7209, 7255, 8010, 8706, 9612, 12015, 13059, 14418, 14510, 16020, 17412, 21765, 24030, 26118, 28836, 29020, 36045, 39177, 43530, 48060, 52236, 65295, 72090, 78354, 87060, 117531, 129139, 130590, 144180, 156708, 195885, 235062, 258278, 261180, 387417, 391770, 470124, 516556, 587655, 645695, 774834, 783540, 1162251, 1175310, 1291390, 1549668, 1937085, 2324502, 2350620, 2582780, 3486753, 3874170, 4649004, 5811255, 6973506, 7748340, 10460259, 11622510, 13947012, 17433765, 20920518, 23245020, 34867530, 41841036, 52301295, 69735060, 104602590, 209205180]

約数ペア:

[(1, 209205180), (2, 104602590), (3, 69735060), (4, 52301295), (5, 41841036), (6, 34867530), (9, 23245020), (10, 20920518), (12, 17433765), (15, 13947012), (18, 11622510), (20, 10460259), (27, 7748340), (30, 6973506), (36, 5811255), (45, 4649004), (54, 3874170), (60, 3486753), (81, 2582780), (89, 2350620), (90, 2324502), (108, 1937085), (135, 1549668), (162, 1291390), (178, 1175310), (180, 1162251), (267, 783540), (270, 774834), (324, 645695), (356, 587655), (405, 516556), (445, 470124), (534, 391770), (540, 387417), (801, 261180), (810, 258278), (890, 235062), (1068, 195885), (1335, 156708), (1451, 144180), (1602, 130590), (1620, 129139), (1780, 117531), (2403, 87060), (2670, 78354), (2902, 72090), (3204, 65295), (4005, 52236), (4353, 48060), (4806, 43530), (5340, 39177), (5804, 36045), (7209, 29020), (7255, 28836), (8010, 26118), (8706, 24030), (9612, 21765), (12015, 17412), (13059, 16020), (14418, 14510)]