51237375

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:305

約数の個数: 64

約数和(自身を含む): 98841600

約数和(自身を除く): 47604225

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 125, 131, 149, 175, 375, 393, 447, 525, 655, 745, 875, 917, 1043, 1965, 2235, 2625, 2751, 3129, 3275, 3725, 4585, 5215, 9825, 11175, 13755, 15645, 16375, 18625, 19519, 22925, 26075, 49125, 55875, 58557, 68775, 78225, 97595, 114625, 130375, 136633, 292785, 343875, 391125, 409899, 487975, 683165, 1463925, 2049495, 2439875, 3415825, 7319625, 10247475, 17079125, 51237375]

約数ペア:

[(1, 51237375), (3, 17079125), (5, 10247475), (7, 7319625), (15, 3415825), (21, 2439875), (25, 2049495), (35, 1463925), (75, 683165), (105, 487975), (125, 409899), (131, 391125), (149, 343875), (175, 292785), (375, 136633), (393, 130375), (447, 114625), (525, 97595), (655, 78225), (745, 68775), (875, 58557), (917, 55875), (1043, 49125), (1965, 26075), (2235, 22925), (2625, 19519), (2751, 18625), (3129, 16375), (3275, 15645), (3725, 13755), (4585, 11175), (5215, 9825)]