28751775

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{797}}^1$

素因数の和:860

約数の個数: 48

約数和(自身を含む): 52642464

約数和(自身を除く): 23890689

約数列:

[1, 3, 5, 13, 15, 25, 37, 39, 65, 75, 111, 185, 195, 325, 481, 555, 797, 925, 975, 1443, 2391, 2405, 2775, 3985, 7215, 10361, 11955, 12025, 19925, 29489, 31083, 36075, 51805, 59775, 88467, 147445, 155415, 259025, 383357, 442335, 737225, 777075, 1150071, 1916785, 2211675, 5750355, 9583925, 28751775]

約数ペア:

[(1, 28751775), (3, 9583925), (5, 5750355), (13, 2211675), (15, 1916785), (25, 1150071), (37, 777075), (39, 737225), (65, 442335), (75, 383357), (111, 259025), (185, 155415), (195, 147445), (325, 88467), (481, 59775), (555, 51805), (797, 36075), (925, 31083), (975, 29489), (1443, 19925), (2391, 12025), (2405, 11955), (2775, 10361), (3985, 7215)]