20161684125

素因数分解:

$3^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{37889}}^1$

素因数の和:37964

約数の個数: 96

約数和(自身を含む): 40572005760

約数和(自身を除く): 20410321635

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 43, 45, 55, 75, 99, 125, 129, 165, 215, 225, 275, 375, 387, 473, 495, 645, 825, 1075, 1125, 1375, 1419, 1935, 2365, 2475, 3225, 4125, 4257, 5375, 7095, 9675, 11825, 12375, 16125, 21285, 35475, 37889, 48375, 59125, 106425, 113667, 177375, 189445, 341001, 416779, 532125, 568335, 947225, 1250337, 1629227, 1705005, 2083895, 2841675, 3751011, 4736125, 4887681, 6251685, 8146135, 8525025, 10419475, 14208375, 14663043, 17921497, 18755055, 24438405, 31258425, 40730675, 42625125, 52097375, 53764491, 73315215, 89607485, 93775275, 122192025, 156292125, 161293473, 203653375, 268822455, 366576075, 448037425, 468876375, 610960125, 806467365, 1344112275, 1832880375, 2240187125, 4032336825, 6720561375, 20161684125]

約数ペア:

[(1, 20161684125), (3, 6720561375), (5, 4032336825), (9, 2240187125), (11, 1832880375), (15, 1344112275), (25, 806467365), (33, 610960125), (43, 468876375), (45, 448037425), (55, 366576075), (75, 268822455), (99, 203653375), (125, 161293473), (129, 156292125), (165, 122192025), (215, 93775275), (225, 89607485), (275, 73315215), (375, 53764491), (387, 52097375), (473, 42625125), (495, 40730675), (645, 31258425), (825, 24438405), (1075, 18755055), (1125, 17921497), (1375, 14663043), (1419, 14208375), (1935, 10419475), (2365, 8525025), (2475, 8146135), (3225, 6251685), (4125, 4887681), (4257, 4736125), (5375, 3751011), (7095, 2841675), (9675, 2083895), (11825, 1705005), (12375, 1629227), (16125, 1250337), (21285, 947225), (35475, 568335), (37889, 532125), (48375, 416779), (59125, 341001), (106425, 189445), (113667, 177375)]