1990849140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{50969}}^1$

素因数の和:51022

約数の個数: 144

約数和(自身を含む): 7124382720

約数和(自身を除く): 5133533580

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, 868, 930, 1085, 1116, 1260, 1302, 1395, 1860, 1953, 2170, 2604, 2790, 3255, 3906, 4340, 5580, 6510, 7812, 9765, 13020, 19530, 39060, 50969, 101938, 152907, 203876, 254845, 305814, 356783, 458721, 509690, 611628, 713566, 764535, 917442, 1019380, 1070349, 1427132, 1529070, 1580039, 1783915, 1834884, 2140698, 2293605, 3058140, 3160078, 3211047, 3567830, 4281396, 4587210, 4740117, 5351745, 6320156, 6422094, 7135660, 7900195, 9174420, 9480234, 10703490, 11060273, 12844188, 14220351, 15800390, 16055235, 18960468, 21406980, 22120546, 23700585, 28440702, 31600780, 32110470, 33180819, 44241092, 47401170, 55301365, 56881404, 64220940, 66361638, 71101755, 94802340, 99542457, 110602730, 132723276, 142203510, 165904095, 199084914, 221205460, 284407020, 331808190, 398169828, 497712285, 663616380, 995424570, 1990849140]

約数ペア:

[(1, 1990849140), (2, 995424570), (3, 663616380), (4, 497712285), (5, 398169828), (6, 331808190), (7, 284407020), (9, 221205460), (10, 199084914), (12, 165904095), (14, 142203510), (15, 132723276), (18, 110602730), (20, 99542457), (21, 94802340), (28, 71101755), (30, 66361638), (31, 64220940), (35, 56881404), (36, 55301365), (42, 47401170), (45, 44241092), (60, 33180819), (62, 32110470), (63, 31600780), (70, 28440702), (84, 23700585), (90, 22120546), (93, 21406980), (105, 18960468), (124, 16055235), (126, 15800390), (140, 14220351), (155, 12844188), (180, 11060273), (186, 10703490), (210, 9480234), (217, 9174420), (252, 7900195), (279, 7135660), (310, 6422094), (315, 6320156), (372, 5351745), (420, 4740117), (434, 4587210), (465, 4281396), (558, 3567830), (620, 3211047), (630, 3160078), (651, 3058140), (868, 2293605), (930, 2140698), (1085, 1834884), (1116, 1783915), (1260, 1580039), (1302, 1529070), (1395, 1427132), (1860, 1070349), (1953, 1019380), (2170, 917442), (2604, 764535), (2790, 713566), (3255, 611628), (3906, 509690), (4340, 458721), (5580, 356783), (6510, 305814), (7812, 254845), (9765, 203876), (13020, 152907), (19530, 101938), (39060, 50969)]