290321200

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1801}}^1$

素因数の和:1863

約数の個数: 120

約数和(自身を含む): 775811456

約数和(自身を除く): 485490256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 40, 50, 52, 62, 65, 80, 100, 104, 124, 130, 155, 200, 208, 248, 260, 310, 325, 400, 403, 496, 520, 620, 650, 775, 806, 1040, 1240, 1300, 1550, 1612, 1801, 2015, 2480, 2600, 3100, 3224, 3602, 4030, 5200, 6200, 6448, 7204, 8060, 9005, 10075, 12400, 14408, 16120, 18010, 20150, 23413, 28816, 32240, 36020, 40300, 45025, 46826, 55831, 72040, 80600, 90050, 93652, 111662, 117065, 144080, 161200, 180100, 187304, 223324, 234130, 279155, 360200, 374608, 446648, 468260, 558310, 585325, 720400, 725803, 893296, 936520, 1116620, 1170650, 1395775, 1451606, 1873040, 2233240, 2341300, 2791550, 2903212, 3629015, 4466480, 4682600, 5583100, 5806424, 7258030, 9365200, 11166200, 11612848, 14516060, 18145075, 22332400, 29032120, 36290150, 58064240, 72580300, 145160600, 290321200]

約数ペア:

[(1, 290321200), (2, 145160600), (4, 72580300), (5, 58064240), (8, 36290150), (10, 29032120), (13, 22332400), (16, 18145075), (20, 14516060), (25, 11612848), (26, 11166200), (31, 9365200), (40, 7258030), (50, 5806424), (52, 5583100), (62, 4682600), (65, 4466480), (80, 3629015), (100, 2903212), (104, 2791550), (124, 2341300), (130, 2233240), (155, 1873040), (200, 1451606), (208, 1395775), (248, 1170650), (260, 1116620), (310, 936520), (325, 893296), (400, 725803), (403, 720400), (496, 585325), (520, 558310), (620, 468260), (650, 446648), (775, 374608), (806, 360200), (1040, 279155), (1240, 234130), (1300, 223324), (1550, 187304), (1612, 180100), (1801, 161200), (2015, 144080), (2480, 117065), (2600, 111662), (3100, 93652), (3224, 90050), (3602, 80600), (4030, 72040), (5200, 55831), (6200, 46826), (6448, 45025), (7204, 40300), (8060, 36020), (9005, 32240), (10075, 28816), (12400, 23413), (14408, 20150), (16120, 18010)]