28125890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{193}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 58665600

約数和(自身を除く): 30539710

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 59, 65, 95, 118, 130, 190, 193, 247, 295, 386, 494, 590, 767, 965, 1121, 1235, 1534, 1930, 2242, 2470, 2509, 3667, 3835, 5018, 5605, 7334, 7670, 11210, 11387, 12545, 14573, 18335, 22774, 25090, 29146, 36670, 47671, 56935, 72865, 95342, 113870, 145730, 148031, 216353, 238355, 296062, 432706, 476710, 740155, 1081765, 1480310, 2163530, 2812589, 5625178, 14062945, 28125890]

約数ペア:

[(1, 28125890), (2, 14062945), (5, 5625178), (10, 2812589), (13, 2163530), (19, 1480310), (26, 1081765), (38, 740155), (59, 476710), (65, 432706), (95, 296062), (118, 238355), (130, 216353), (190, 148031), (193, 145730), (247, 113870), (295, 95342), (386, 72865), (494, 56935), (590, 47671), (767, 36670), (965, 29146), (1121, 25090), (1235, 22774), (1534, 18335), (1930, 14573), (2242, 12545), (2470, 11387), (2509, 11210), (3667, 7670), (3835, 7334), (5018, 5605)]