81132675

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:249

約数の個数: 72

約数和(自身を含む): 150039504

約数和(自身を除く): 68906829

約数列:

[1, 3, 5, 13, 15, 25, 37, 39, 65, 75, 111, 169, 173, 185, 195, 325, 481, 507, 519, 555, 845, 865, 925, 975, 1443, 2249, 2405, 2535, 2595, 2775, 4225, 4325, 6253, 6401, 6747, 7215, 11245, 12025, 12675, 12975, 18759, 19203, 29237, 31265, 32005, 33735, 36075, 56225, 83213, 87711, 93795, 96015, 146185, 156325, 160025, 168675, 249639, 416065, 438555, 468975, 480075, 730925, 1081769, 1248195, 2080325, 2192775, 3245307, 5408845, 6240975, 16226535, 27044225, 81132675]

約数ペア:

[(1, 81132675), (3, 27044225), (5, 16226535), (13, 6240975), (15, 5408845), (25, 3245307), (37, 2192775), (39, 2080325), (65, 1248195), (75, 1081769), (111, 730925), (169, 480075), (173, 468975), (185, 438555), (195, 416065), (325, 249639), (481, 168675), (507, 160025), (519, 156325), (555, 146185), (845, 96015), (865, 93795), (925, 87711), (975, 83213), (1443, 56225), (2249, 36075), (2405, 33735), (2535, 32005), (2595, 31265), (2775, 29237), (4225, 19203), (4325, 18759), (6253, 12975), (6401, 12675), (6747, 12025), (7215, 11245)]