25115625

素因数分解:

$3^2\times 5^5\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:97

約数の個数: 72

約数和(自身を含む): 48746880

約数和(自身を除く): 23631255

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 47, 57, 75, 95, 125, 141, 171, 225, 235, 285, 375, 423, 475, 625, 705, 855, 893, 1125, 1175, 1425, 1875, 2115, 2375, 2679, 3125, 3525, 4275, 4465, 5625, 5875, 7125, 8037, 9375, 10575, 11875, 13395, 17625, 21375, 22325, 28125, 29375, 35625, 40185, 52875, 59375, 66975, 88125, 106875, 111625, 146875, 178125, 200925, 264375, 334875, 440625, 534375, 558125, 1004625, 1321875, 1674375, 2790625, 5023125, 8371875, 25115625]

約数ペア:

[(1, 25115625), (3, 8371875), (5, 5023125), (9, 2790625), (15, 1674375), (19, 1321875), (25, 1004625), (45, 558125), (47, 534375), (57, 440625), (75, 334875), (95, 264375), (125, 200925), (141, 178125), (171, 146875), (225, 111625), (235, 106875), (285, 88125), (375, 66975), (423, 59375), (475, 52875), (625, 40185), (705, 35625), (855, 29375), (893, 28125), (1125, 22325), (1175, 21375), (1425, 17625), (1875, 13395), (2115, 11875), (2375, 10575), (2679, 9375), (3125, 8037), (3525, 7125), (4275, 5875), (4465, 5625)]