20838104

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 46785600

約数和(自身を除く): 25947496

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 89, 113, 148, 178, 226, 259, 296, 356, 452, 518, 623, 712, 791, 904, 1036, 1246, 1582, 2072, 2492, 3164, 3293, 4181, 4984, 6328, 6586, 8362, 10057, 13172, 16724, 20114, 23051, 26344, 29267, 33448, 40228, 46102, 58534, 70399, 80456, 92204, 117068, 140798, 184408, 234136, 281596, 372109, 563192, 744218, 1488436, 2604763, 2976872, 5209526, 10419052, 20838104]

約数ペア:

[(1, 20838104), (2, 10419052), (4, 5209526), (7, 2976872), (8, 2604763), (14, 1488436), (28, 744218), (37, 563192), (56, 372109), (74, 281596), (89, 234136), (113, 184408), (148, 140798), (178, 117068), (226, 92204), (259, 80456), (296, 70399), (356, 58534), (452, 46102), (518, 40228), (623, 33448), (712, 29267), (791, 26344), (904, 23051), (1036, 20114), (1246, 16724), (1582, 13172), (2072, 10057), (2492, 8362), (3164, 6586), (3293, 6328), (4181, 4984)]