28630980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{733}}^1$

素因数の和:786

約数の個数: 144

約数和(自身を含む): 102595584

約数和(自身を除く): 73964604

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 420, 434, 465, 558, 620, 630, 651, 733, 868, 930, 1085, 1116, 1260, 1302, 1395, 1466, 1860, 1953, 2170, 2199, 2604, 2790, 2932, 3255, 3665, 3906, 4340, 4398, 5131, 5580, 6510, 6597, 7330, 7812, 8796, 9765, 10262, 10995, 13020, 13194, 14660, 15393, 19530, 20524, 21990, 22723, 25655, 26388, 30786, 32985, 39060, 43980, 45446, 46179, 51310, 61572, 65970, 68169, 76965, 90892, 92358, 102620, 113615, 131940, 136338, 153930, 159061, 184716, 204507, 227230, 230895, 272676, 307860, 318122, 340845, 409014, 454460, 461790, 477183, 636244, 681690, 795305, 818028, 923580, 954366, 1022535, 1363380, 1431549, 1590610, 1908732, 2045070, 2385915, 2863098, 3181220, 4090140, 4771830, 5726196, 7157745, 9543660, 14315490, 28630980]

約数ペア:

[(1, 28630980), (2, 14315490), (3, 9543660), (4, 7157745), (5, 5726196), (6, 4771830), (7, 4090140), (9, 3181220), (10, 2863098), (12, 2385915), (14, 2045070), (15, 1908732), (18, 1590610), (20, 1431549), (21, 1363380), (28, 1022535), (30, 954366), (31, 923580), (35, 818028), (36, 795305), (42, 681690), (45, 636244), (60, 477183), (62, 461790), (63, 454460), (70, 409014), (84, 340845), (90, 318122), (93, 307860), (105, 272676), (124, 230895), (126, 227230), (140, 204507), (155, 184716), (180, 159061), (186, 153930), (210, 136338), (217, 131940), (252, 113615), (279, 102620), (310, 92358), (315, 90892), (372, 76965), (420, 68169), (434, 65970), (465, 61572), (558, 51310), (620, 46179), (630, 45446), (651, 43980), (733, 39060), (868, 32985), (930, 30786), (1085, 26388), (1116, 25655), (1260, 22723), (1302, 21990), (1395, 20524), (1466, 19530), (1860, 15393), (1953, 14660), (2170, 13194), (2199, 13020), (2604, 10995), (2790, 10262), (2932, 9765), (3255, 8796), (3665, 7812), (3906, 7330), (4340, 6597), (4398, 6510), (5131, 5580)]