20197285625

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:237

約数の個数: 160

約数和(自身を含む): 30972585600

約数和(自身を除く): 10775299975

約数列:

[1, 5, 11, 17, 25, 29, 55, 59, 85, 101, 125, 145, 187, 275, 295, 319, 425, 493, 505, 625, 649, 725, 935, 1003, 1111, 1375, 1475, 1595, 1711, 1717, 2125, 2465, 2525, 2929, 3245, 3625, 4675, 5015, 5423, 5555, 5959, 6875, 7375, 7975, 8555, 8585, 10625, 11033, 12325, 12625, 14645, 16225, 18125, 18821, 18887, 23375, 25075, 27115, 27775, 29087, 29795, 32219, 36875, 39875, 42775, 42925, 49793, 55165, 61625, 63125, 65549, 73225, 81125, 94105, 94435, 101303, 116875, 125375, 135575, 138875, 145435, 148975, 161095, 172811, 199375, 213875, 214625, 248965, 275825, 308125, 319957, 327745, 366125, 405625, 470525, 472175, 506515, 547723, 626875, 677875, 694375, 727175, 744875, 805475, 864055, 1069375, 1073125, 1114333, 1244825, 1379125, 1599785, 1638725, 1830625, 1900921, 2352625, 2360875, 2532575, 2738615, 2937787, 3389375, 3635875, 3724375, 4027375, 4320275, 5571665, 6224125, 6895625, 7998925, 8193625, 9504605, 11763125, 11804375, 12662875, 13693075, 14688935, 18179375, 20136875, 21601375, 27858325, 31120625, 32315657, 39994625, 40968125, 47523025, 63314375, 68465375, 73444675, 108006875, 139291625, 161578285, 199973125, 237615125, 342326875, 367223375, 696458125, 807891425, 1188075625, 1836116875, 4039457125, 20197285625]

約数ペア:

[(1, 20197285625), (5, 4039457125), (11, 1836116875), (17, 1188075625), (25, 807891425), (29, 696458125), (55, 367223375), (59, 342326875), (85, 237615125), (101, 199973125), (125, 161578285), (145, 139291625), (187, 108006875), (275, 73444675), (295, 68465375), (319, 63314375), (425, 47523025), (493, 40968125), (505, 39994625), (625, 32315657), (649, 31120625), (725, 27858325), (935, 21601375), (1003, 20136875), (1111, 18179375), (1375, 14688935), (1475, 13693075), (1595, 12662875), (1711, 11804375), (1717, 11763125), (2125, 9504605), (2465, 8193625), (2525, 7998925), (2929, 6895625), (3245, 6224125), (3625, 5571665), (4675, 4320275), (5015, 4027375), (5423, 3724375), (5555, 3635875), (5959, 3389375), (6875, 2937787), (7375, 2738615), (7975, 2532575), (8555, 2360875), (8585, 2352625), (10625, 1900921), (11033, 1830625), (12325, 1638725), (12625, 1599785), (14645, 1379125), (16225, 1244825), (18125, 1114333), (18821, 1073125), (18887, 1069375), (23375, 864055), (25075, 805475), (27115, 744875), (27775, 727175), (29087, 694375), (29795, 677875), (32219, 626875), (36875, 547723), (39875, 506515), (42775, 472175), (42925, 470525), (49793, 405625), (55165, 366125), (61625, 327745), (63125, 319957), (65549, 308125), (73225, 275825), (81125, 248965), (94105, 214625), (94435, 213875), (101303, 199375), (116875, 172811), (125375, 161095), (135575, 148975), (138875, 145435)]