221492520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:360

約数の個数: 192

約数和(自身を含む): 754790400

約数和(自身を除く): 533297880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 89, 90, 93, 120, 124, 155, 178, 180, 186, 223, 248, 267, 279, 310, 356, 360, 372, 445, 446, 465, 534, 558, 620, 669, 712, 744, 801, 890, 892, 930, 1068, 1115, 1116, 1240, 1335, 1338, 1395, 1602, 1780, 1784, 1860, 2007, 2136, 2230, 2232, 2670, 2676, 2759, 2790, 3204, 3345, 3560, 3720, 4005, 4014, 4460, 5340, 5352, 5518, 5580, 6408, 6690, 6913, 8010, 8028, 8277, 8920, 10035, 10680, 11036, 11160, 13380, 13795, 13826, 16020, 16056, 16554, 19847, 20070, 20739, 22072, 24831, 26760, 27590, 27652, 32040, 33108, 34565, 39694, 40140, 41385, 41478, 49662, 55180, 55304, 59541, 62217, 66216, 69130, 79388, 80280, 82770, 82956, 99235, 99324, 103695, 110360, 119082, 124155, 124434, 138260, 158776, 165540, 165912, 178623, 198470, 198648, 207390, 238164, 248310, 248868, 276520, 297705, 311085, 331080, 357246, 396940, 414780, 476328, 496620, 497736, 595410, 615257, 622170, 714492, 793880, 829560, 893115, 993240, 1190820, 1230514, 1244340, 1428984, 1786230, 1845771, 2381640, 2461028, 2488680, 3076285, 3572460, 3691542, 4922056, 5537313, 6152570, 7144920, 7383084, 9228855, 11074626, 12305140, 14766168, 18457710, 22149252, 24610280, 27686565, 36915420, 44298504, 55373130, 73830840, 110746260, 221492520]

約数ペア:

[(1, 221492520), (2, 110746260), (3, 73830840), (4, 55373130), (5, 44298504), (6, 36915420), (8, 27686565), (9, 24610280), (10, 22149252), (12, 18457710), (15, 14766168), (18, 12305140), (20, 11074626), (24, 9228855), (30, 7383084), (31, 7144920), (36, 6152570), (40, 5537313), (45, 4922056), (60, 3691542), (62, 3572460), (72, 3076285), (89, 2488680), (90, 2461028), (93, 2381640), (120, 1845771), (124, 1786230), (155, 1428984), (178, 1244340), (180, 1230514), (186, 1190820), (223, 993240), (248, 893115), (267, 829560), (279, 793880), (310, 714492), (356, 622170), (360, 615257), (372, 595410), (445, 497736), (446, 496620), (465, 476328), (534, 414780), (558, 396940), (620, 357246), (669, 331080), (712, 311085), (744, 297705), (801, 276520), (890, 248868), (892, 248310), (930, 238164), (1068, 207390), (1115, 198648), (1116, 198470), (1240, 178623), (1335, 165912), (1338, 165540), (1395, 158776), (1602, 138260), (1780, 124434), (1784, 124155), (1860, 119082), (2007, 110360), (2136, 103695), (2230, 99324), (2232, 99235), (2670, 82956), (2676, 82770), (2759, 80280), (2790, 79388), (3204, 69130), (3345, 66216), (3560, 62217), (3720, 59541), (4005, 55304), (4014, 55180), (4460, 49662), (5340, 41478), (5352, 41385), (5518, 40140), (5580, 39694), (6408, 34565), (6690, 33108), (6913, 32040), (8010, 27652), (8028, 27590), (8277, 26760), (8920, 24831), (10035, 22072), (10680, 20739), (11036, 20070), (11160, 19847), (13380, 16554), (13795, 16056), (13826, 16020)]