80320380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{199}}^1$

素因数の和:280

約数の個数: 144

約数和(自身を含む): 266918400

約数和(自身を除く): 186598020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 199, 210, 217, 310, 372, 398, 420, 434, 465, 597, 620, 651, 796, 868, 930, 961, 995, 1085, 1194, 1302, 1393, 1860, 1922, 1990, 2170, 2388, 2604, 2786, 2883, 2985, 3255, 3844, 3980, 4179, 4340, 4805, 5572, 5766, 5970, 6169, 6510, 6727, 6965, 8358, 9610, 11532, 11940, 12338, 13020, 13454, 13930, 14415, 16716, 18507, 19220, 20181, 20895, 24676, 26908, 27860, 28830, 30845, 33635, 37014, 40362, 41790, 43183, 57660, 61690, 67270, 74028, 80724, 83580, 86366, 92535, 100905, 123380, 129549, 134540, 172732, 185070, 191239, 201810, 215915, 259098, 370140, 382478, 403620, 431830, 518196, 573717, 647745, 764956, 863660, 956195, 1147434, 1295490, 1338673, 1912390, 2294868, 2590980, 2677346, 2868585, 3824780, 4016019, 5354692, 5737170, 6693365, 8032038, 11474340, 13386730, 16064076, 20080095, 26773460, 40160190, 80320380]

約数ペア:

[(1, 80320380), (2, 40160190), (3, 26773460), (4, 20080095), (5, 16064076), (6, 13386730), (7, 11474340), (10, 8032038), (12, 6693365), (14, 5737170), (15, 5354692), (20, 4016019), (21, 3824780), (28, 2868585), (30, 2677346), (31, 2590980), (35, 2294868), (42, 1912390), (60, 1338673), (62, 1295490), (70, 1147434), (84, 956195), (93, 863660), (105, 764956), (124, 647745), (140, 573717), (155, 518196), (186, 431830), (199, 403620), (210, 382478), (217, 370140), (310, 259098), (372, 215915), (398, 201810), (420, 191239), (434, 185070), (465, 172732), (597, 134540), (620, 129549), (651, 123380), (796, 100905), (868, 92535), (930, 86366), (961, 83580), (995, 80724), (1085, 74028), (1194, 67270), (1302, 61690), (1393, 57660), (1860, 43183), (1922, 41790), (1990, 40362), (2170, 37014), (2388, 33635), (2604, 30845), (2786, 28830), (2883, 27860), (2985, 26908), (3255, 24676), (3844, 20895), (3980, 20181), (4179, 19220), (4340, 18507), (4805, 16716), (5572, 14415), (5766, 13930), (5970, 13454), (6169, 13020), (6510, 12338), (6727, 11940), (6965, 11532), (8358, 9610)]