28743820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:263

約数の個数: 96

約数和(自身を含む): 73543680

約数和(自身を除く): 44799860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 37, 62, 70, 74, 124, 140, 148, 155, 179, 185, 217, 259, 310, 358, 370, 434, 518, 620, 716, 740, 868, 895, 1036, 1085, 1147, 1253, 1295, 1790, 2170, 2294, 2506, 2590, 3580, 4340, 4588, 5012, 5180, 5549, 5735, 6265, 6623, 8029, 11098, 11470, 12530, 13246, 16058, 22196, 22940, 25060, 26492, 27745, 32116, 33115, 38843, 40145, 46361, 55490, 66230, 77686, 80290, 92722, 110980, 132460, 155372, 160580, 185444, 194215, 205313, 231805, 388430, 410626, 463610, 776860, 821252, 927220, 1026565, 1437191, 2053130, 2874382, 4106260, 5748764, 7185955, 14371910, 28743820]

約数ペア:

[(1, 28743820), (2, 14371910), (4, 7185955), (5, 5748764), (7, 4106260), (10, 2874382), (14, 2053130), (20, 1437191), (28, 1026565), (31, 927220), (35, 821252), (37, 776860), (62, 463610), (70, 410626), (74, 388430), (124, 231805), (140, 205313), (148, 194215), (155, 185444), (179, 160580), (185, 155372), (217, 132460), (259, 110980), (310, 92722), (358, 80290), (370, 77686), (434, 66230), (518, 55490), (620, 46361), (716, 40145), (740, 38843), (868, 33115), (895, 32116), (1036, 27745), (1085, 26492), (1147, 25060), (1253, 22940), (1295, 22196), (1790, 16058), (2170, 13246), (2294, 12530), (2506, 11470), (2590, 11098), (3580, 8029), (4340, 6623), (4588, 6265), (5012, 5735), (5180, 5549)]