202808125

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:371

約数の個数: 40

約数和(自身を含む): 276630200

約数和(自身を除く): 73822075

約数列:

[1, 5, 13, 25, 65, 109, 125, 229, 325, 545, 625, 1145, 1417, 1625, 2725, 2977, 5725, 7085, 8125, 13625, 14885, 24961, 28625, 35425, 68125, 74425, 124805, 143125, 177125, 324493, 372125, 624025, 885625, 1622465, 1860625, 3120125, 8112325, 15600625, 40561625, 202808125]

約数ペア:

[(1, 202808125), (5, 40561625), (13, 15600625), (25, 8112325), (65, 3120125), (109, 1860625), (125, 1622465), (229, 885625), (325, 624025), (545, 372125), (625, 324493), (1145, 177125), (1417, 143125), (1625, 124805), (2725, 74425), (2977, 68125), (5725, 35425), (7085, 28625), (8125, 24961), (13625, 14885)]