278380875

素因数分解:

$3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:565

約数の個数: 64

約数和(自身を含む): 494208000

約数和(自身を除く): 215827125

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 89, 95, 125, 267, 285, 375, 439, 445, 475, 1317, 1335, 1425, 1691, 2195, 2225, 2375, 5073, 6585, 6675, 7125, 8341, 8455, 10975, 11125, 25023, 25365, 32925, 33375, 39071, 41705, 42275, 54875, 117213, 125115, 126825, 164625, 195355, 208525, 211375, 586065, 625575, 634125, 742349, 976775, 1042625, 2227047, 2930325, 3127875, 3711745, 4883875, 11135235, 14651625, 18558725, 55676175, 92793625, 278380875]

約数ペア:

[(1, 278380875), (3, 92793625), (5, 55676175), (15, 18558725), (19, 14651625), (25, 11135235), (57, 4883875), (75, 3711745), (89, 3127875), (95, 2930325), (125, 2227047), (267, 1042625), (285, 976775), (375, 742349), (439, 634125), (445, 625575), (475, 586065), (1317, 211375), (1335, 208525), (1425, 195355), (1691, 164625), (2195, 126825), (2225, 125115), (2375, 117213), (5073, 54875), (6585, 42275), (6675, 41705), (7125, 39071), (8341, 33375), (8455, 32925), (10975, 25365), (11125, 25023)]