28797405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{73}}^1$

素因数の和:135

約数の個数: 96

約数和(自身を含む): 61065984

約数和(自身を除く): 32268579

約数列:

[1, 3, 5, 7, 13, 15, 17, 21, 35, 39, 51, 65, 73, 85, 91, 105, 119, 195, 219, 221, 255, 273, 289, 357, 365, 455, 511, 595, 663, 867, 949, 1095, 1105, 1241, 1365, 1445, 1533, 1547, 1785, 2023, 2555, 2847, 3315, 3723, 3757, 4335, 4641, 4745, 6069, 6205, 6643, 7665, 7735, 8687, 10115, 11271, 14235, 16133, 18615, 18785, 19929, 21097, 23205, 26061, 26299, 30345, 33215, 43435, 48399, 56355, 63291, 78897, 80665, 99645, 105485, 112931, 130305, 131495, 147679, 241995, 274261, 316455, 338793, 394485, 443037, 564655, 738395, 822783, 1371305, 1693965, 1919827, 2215185, 4113915, 5759481, 9599135, 28797405]

約数ペア:

[(1, 28797405), (3, 9599135), (5, 5759481), (7, 4113915), (13, 2215185), (15, 1919827), (17, 1693965), (21, 1371305), (35, 822783), (39, 738395), (51, 564655), (65, 443037), (73, 394485), (85, 338793), (91, 316455), (105, 274261), (119, 241995), (195, 147679), (219, 131495), (221, 130305), (255, 112931), (273, 105485), (289, 99645), (357, 80665), (365, 78897), (455, 63291), (511, 56355), (595, 48399), (663, 43435), (867, 33215), (949, 30345), (1095, 26299), (1105, 26061), (1241, 23205), (1365, 21097), (1445, 19929), (1533, 18785), (1547, 18615), (1785, 16133), (2023, 14235), (2555, 11271), (2847, 10115), (3315, 8687), (3723, 7735), (3757, 7665), (4335, 6643), (4641, 6205), (4745, 6069)]