64555020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{503}}^1$

素因数の和:572

約数の個数: 144

約数和(自身を含む): 211341312

約数和(自身を除く): 146786292

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 31, 36, 45, 46, 60, 62, 69, 90, 92, 93, 115, 124, 138, 155, 180, 186, 207, 230, 276, 279, 310, 345, 372, 414, 460, 465, 503, 558, 620, 690, 713, 828, 930, 1006, 1035, 1116, 1380, 1395, 1426, 1509, 1860, 2012, 2070, 2139, 2515, 2790, 2852, 3018, 3565, 4140, 4278, 4527, 5030, 5580, 6036, 6417, 7130, 7545, 8556, 9054, 10060, 10695, 11569, 12834, 14260, 15090, 15593, 18108, 21390, 22635, 23138, 25668, 30180, 31186, 32085, 34707, 42780, 45270, 46276, 46779, 57845, 62372, 64170, 69414, 77965, 90540, 93558, 104121, 115690, 128340, 138828, 140337, 155930, 173535, 187116, 208242, 231380, 233895, 280674, 311860, 347070, 358639, 416484, 467790, 520605, 561348, 694140, 701685, 717278, 935580, 1041210, 1075917, 1403370, 1434556, 1793195, 2082420, 2151834, 2806740, 3227751, 3586390, 4303668, 5379585, 6455502, 7172780, 10759170, 12911004, 16138755, 21518340, 32277510, 64555020]

約数ペア:

[(1, 64555020), (2, 32277510), (3, 21518340), (4, 16138755), (5, 12911004), (6, 10759170), (9, 7172780), (10, 6455502), (12, 5379585), (15, 4303668), (18, 3586390), (20, 3227751), (23, 2806740), (30, 2151834), (31, 2082420), (36, 1793195), (45, 1434556), (46, 1403370), (60, 1075917), (62, 1041210), (69, 935580), (90, 717278), (92, 701685), (93, 694140), (115, 561348), (124, 520605), (138, 467790), (155, 416484), (180, 358639), (186, 347070), (207, 311860), (230, 280674), (276, 233895), (279, 231380), (310, 208242), (345, 187116), (372, 173535), (414, 155930), (460, 140337), (465, 138828), (503, 128340), (558, 115690), (620, 104121), (690, 93558), (713, 90540), (828, 77965), (930, 69414), (1006, 64170), (1035, 62372), (1116, 57845), (1380, 46779), (1395, 46276), (1426, 45270), (1509, 42780), (1860, 34707), (2012, 32085), (2070, 31186), (2139, 30180), (2515, 25668), (2790, 23138), (2852, 22635), (3018, 21390), (3565, 18108), (4140, 15593), (4278, 15090), (4527, 14260), (5030, 12834), (5580, 11569), (6036, 10695), (6417, 10060), (7130, 9054), (7545, 8556)]