28613620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1$

素因数の和:413

約数の個数: 96

約数和(自身を含む): 74833920

約数和(自身を除く): 46220300

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 31, 35, 38, 62, 70, 76, 95, 124, 133, 140, 155, 190, 217, 266, 310, 347, 380, 434, 532, 589, 620, 665, 694, 868, 1085, 1178, 1330, 1388, 1735, 2170, 2356, 2429, 2660, 2945, 3470, 4123, 4340, 4858, 5890, 6593, 6940, 8246, 9716, 10757, 11780, 12145, 13186, 16492, 20615, 21514, 24290, 26372, 32965, 41230, 43028, 46151, 48580, 53785, 65930, 75299, 82460, 92302, 107570, 131860, 150598, 184604, 204383, 215140, 230755, 301196, 376495, 408766, 461510, 752990, 817532, 923020, 1021915, 1430681, 1505980, 2043830, 2861362, 4087660, 5722724, 7153405, 14306810, 28613620]

約数ペア:

[(1, 28613620), (2, 14306810), (4, 7153405), (5, 5722724), (7, 4087660), (10, 2861362), (14, 2043830), (19, 1505980), (20, 1430681), (28, 1021915), (31, 923020), (35, 817532), (38, 752990), (62, 461510), (70, 408766), (76, 376495), (95, 301196), (124, 230755), (133, 215140), (140, 204383), (155, 184604), (190, 150598), (217, 131860), (266, 107570), (310, 92302), (347, 82460), (380, 75299), (434, 65930), (532, 53785), (589, 48580), (620, 46151), (665, 43028), (694, 41230), (868, 32965), (1085, 26372), (1178, 24290), (1330, 21514), (1388, 20615), (1735, 16492), (2170, 13186), (2356, 12145), (2429, 11780), (2660, 10757), (2945, 9716), (3470, 8246), (4123, 6940), (4340, 6593), (4858, 5890)]