20903670375

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{347}}^1\times {\mathrm{433}}^1$

素因数の和:858

約数の個数: 128

約数和(自身を含む): 40713394176

約数和(自身を除く): 19809723801

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 53, 75, 105, 125, 159, 175, 265, 347, 371, 375, 433, 525, 795, 875, 1041, 1113, 1299, 1325, 1735, 1855, 2165, 2429, 2625, 3031, 3975, 5205, 5565, 6495, 6625, 7287, 8675, 9093, 9275, 10825, 12145, 15155, 18391, 19875, 22949, 26025, 27825, 32475, 36435, 43375, 45465, 46375, 54125, 55173, 60725, 68847, 75775, 91955, 114745, 128737, 130125, 139125, 150251, 160643, 162375, 182175, 227325, 275865, 303625, 344235, 378875, 386211, 450753, 459775, 481929, 573725, 643685, 751255, 803215, 910875, 1051757, 1136625, 1379325, 1721175, 1931055, 2253765, 2298875, 2409645, 2868625, 3155271, 3218425, 3756275, 4016075, 5258785, 6896625, 7963303, 8605875, 9655275, 11268825, 12048225, 15776355, 16092125, 18781375, 20080375, 23889909, 26293925, 39816515, 48276375, 55743121, 56344125, 60241125, 78881775, 119449545, 131469625, 167229363, 199082575, 278715605, 394408875, 597247725, 836146815, 995412875, 1393578025, 2986238625, 4180734075, 6967890125, 20903670375]

約数ペア:

[(1, 20903670375), (3, 6967890125), (5, 4180734075), (7, 2986238625), (15, 1393578025), (21, 995412875), (25, 836146815), (35, 597247725), (53, 394408875), (75, 278715605), (105, 199082575), (125, 167229363), (159, 131469625), (175, 119449545), (265, 78881775), (347, 60241125), (371, 56344125), (375, 55743121), (433, 48276375), (525, 39816515), (795, 26293925), (875, 23889909), (1041, 20080375), (1113, 18781375), (1299, 16092125), (1325, 15776355), (1735, 12048225), (1855, 11268825), (2165, 9655275), (2429, 8605875), (2625, 7963303), (3031, 6896625), (3975, 5258785), (5205, 4016075), (5565, 3756275), (6495, 3218425), (6625, 3155271), (7287, 2868625), (8675, 2409645), (9093, 2298875), (9275, 2253765), (10825, 1931055), (12145, 1721175), (15155, 1379325), (18391, 1136625), (19875, 1051757), (22949, 910875), (26025, 803215), (27825, 751255), (32475, 643685), (36435, 573725), (43375, 481929), (45465, 459775), (46375, 450753), (54125, 386211), (55173, 378875), (60725, 344235), (68847, 303625), (75775, 275865), (91955, 227325), (114745, 182175), (128737, 162375), (130125, 160643), (139125, 150251)]