20172732825

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1$

素因数の和:656

約数の個数: 144

約数和(自身を含む): 39561575040

約数和(自身を除く): 19388842215

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 103, 105, 137, 147, 175, 245, 309, 389, 411, 515, 525, 685, 721, 735, 959, 1167, 1225, 1545, 1945, 2055, 2163, 2575, 2723, 2877, 3425, 3605, 3675, 4795, 5047, 5835, 6713, 7725, 8169, 9725, 10275, 10815, 13615, 14111, 14385, 15141, 18025, 19061, 20139, 23975, 25235, 29175, 33565, 40067, 40845, 42333, 53293, 54075, 57183, 68075, 70555, 71925, 75705, 95305, 98777, 100695, 120201, 126175, 159879, 167825, 200335, 204225, 211665, 266465, 280469, 285915, 296331, 352775, 373051, 378525, 476525, 493885, 503475, 601005, 691439, 799395, 841407, 1001675, 1058325, 1119153, 1332325, 1402345, 1429575, 1481655, 1865255, 1963283, 2074317, 2469425, 2611357, 3005025, 3457195, 3996975, 4207035, 5489179, 5595765, 5889849, 7011725, 7408275, 7834071, 9326275, 9816415, 10371585, 13056785, 16467537, 17285975, 21035175, 27445895, 27978825, 29449245, 38424253, 39170355, 49082075, 51857925, 65283925, 82337685, 115272759, 137229475, 147246225, 192121265, 195851775, 268969771, 411688425, 576363795, 806909313, 960606325, 1344848855, 2881818975, 4034546565, 6724244275, 20172732825]

約数ペア:

[(1, 20172732825), (3, 6724244275), (5, 4034546565), (7, 2881818975), (15, 1344848855), (21, 960606325), (25, 806909313), (35, 576363795), (49, 411688425), (75, 268969771), (103, 195851775), (105, 192121265), (137, 147246225), (147, 137229475), (175, 115272759), (245, 82337685), (309, 65283925), (389, 51857925), (411, 49082075), (515, 39170355), (525, 38424253), (685, 29449245), (721, 27978825), (735, 27445895), (959, 21035175), (1167, 17285975), (1225, 16467537), (1545, 13056785), (1945, 10371585), (2055, 9816415), (2163, 9326275), (2575, 7834071), (2723, 7408275), (2877, 7011725), (3425, 5889849), (3605, 5595765), (3675, 5489179), (4795, 4207035), (5047, 3996975), (5835, 3457195), (6713, 3005025), (7725, 2611357), (8169, 2469425), (9725, 2074317), (10275, 1963283), (10815, 1865255), (13615, 1481655), (14111, 1429575), (14385, 1402345), (15141, 1332325), (18025, 1119153), (19061, 1058325), (20139, 1001675), (23975, 841407), (25235, 799395), (29175, 691439), (33565, 601005), (40067, 503475), (40845, 493885), (42333, 476525), (53293, 378525), (54075, 373051), (57183, 352775), (68075, 296331), (70555, 285915), (71925, 280469), (75705, 266465), (95305, 211665), (98777, 204225), (100695, 200335), (120201, 167825), (126175, 159879)]