401996875

素因数分解:

$5^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:119

約数の個数: 96

約数和(自身を含む): 647958528

約数和(自身を除く): 245961653

約数列:

[1, 5, 7, 17, 23, 25, 35, 47, 85, 115, 119, 125, 161, 175, 235, 329, 391, 425, 575, 595, 625, 799, 805, 875, 1081, 1175, 1645, 1955, 2125, 2737, 2875, 2975, 3125, 3995, 4025, 4375, 5405, 5593, 5875, 7567, 8225, 9775, 10625, 13685, 14375, 14875, 18377, 19975, 20125, 21875, 27025, 27965, 29375, 37835, 41125, 48875, 53125, 68425, 71875, 74375, 91885, 99875, 100625, 128639, 135125, 139825, 146875, 189175, 205625, 244375, 342125, 371875, 459425, 499375, 503125, 643195, 675625, 699125, 945875, 1028125, 1221875, 1710625, 2297125, 2496875, 3215975, 3378125, 3495625, 4729375, 8553125, 11485625, 16079875, 17478125, 23646875, 57428125, 80399375, 401996875]

約数ペア:

[(1, 401996875), (5, 80399375), (7, 57428125), (17, 23646875), (23, 17478125), (25, 16079875), (35, 11485625), (47, 8553125), (85, 4729375), (115, 3495625), (119, 3378125), (125, 3215975), (161, 2496875), (175, 2297125), (235, 1710625), (329, 1221875), (391, 1028125), (425, 945875), (575, 699125), (595, 675625), (625, 643195), (799, 503125), (805, 499375), (875, 459425), (1081, 371875), (1175, 342125), (1645, 244375), (1955, 205625), (2125, 189175), (2737, 146875), (2875, 139825), (2975, 135125), (3125, 128639), (3995, 100625), (4025, 99875), (4375, 91885), (5405, 74375), (5593, 71875), (5875, 68425), (7567, 53125), (8225, 48875), (9775, 41125), (10625, 37835), (13685, 29375), (14375, 27965), (14875, 27025), (18377, 21875), (19975, 20125)]