1900921680

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{53881}}^1$

素因数の和:53914

約数の個数: 180

約数和(自身を含む): 7426340532

約数和(自身を除く): 5525418852

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1260, 1470, 1680, 1764, 1960, 2205, 2352, 2520, 2940, 3528, 3920, 4410, 5040, 5880, 7056, 8820, 11760, 17640, 35280, 53881, 107762, 161643, 215524, 269405, 323286, 377167, 431048, 484929, 538810, 646572, 754334, 808215, 862096, 969858, 1077620, 1131501, 1293144, 1508668, 1616430, 1885835, 1939716, 2155240, 2263002, 2424645, 2586288, 2640169, 3017336, 3232860, 3394503, 3771670, 3879432, 4310480, 4526004, 4849290, 5280338, 5657505, 6034672, 6465720, 6789006, 7543340, 7758864, 7920507, 9052008, 9698580, 10560676, 11315010, 12931440, 13200845, 13578012, 15086680, 15841014, 16972515, 18104016, 19397160, 21121352, 22630020, 23761521, 26401690, 27156024, 30173360, 31682028, 33945030, 38794320, 39602535, 42242704, 45260040, 47523042, 52803380, 54312048, 63364056, 67890060, 79205070, 90520080, 95046084, 105606760, 118807605, 126728112, 135780120, 158410140, 190092168, 211213520, 237615210, 271560240, 316820280, 380184336, 475230420, 633640560, 950460840, 1900921680]

約数ペア:

[(1, 1900921680), (2, 950460840), (3, 633640560), (4, 475230420), (5, 380184336), (6, 316820280), (7, 271560240), (8, 237615210), (9, 211213520), (10, 190092168), (12, 158410140), (14, 135780120), (15, 126728112), (16, 118807605), (18, 105606760), (20, 95046084), (21, 90520080), (24, 79205070), (28, 67890060), (30, 63364056), (35, 54312048), (36, 52803380), (40, 47523042), (42, 45260040), (45, 42242704), (48, 39602535), (49, 38794320), (56, 33945030), (60, 31682028), (63, 30173360), (70, 27156024), (72, 26401690), (80, 23761521), (84, 22630020), (90, 21121352), (98, 19397160), (105, 18104016), (112, 16972515), (120, 15841014), (126, 15086680), (140, 13578012), (144, 13200845), (147, 12931440), (168, 11315010), (180, 10560676), (196, 9698580), (210, 9052008), (240, 7920507), (245, 7758864), (252, 7543340), (280, 6789006), (294, 6465720), (315, 6034672), (336, 5657505), (360, 5280338), (392, 4849290), (420, 4526004), (441, 4310480), (490, 3879432), (504, 3771670), (560, 3394503), (588, 3232860), (630, 3017336), (720, 2640169), (735, 2586288), (784, 2424645), (840, 2263002), (882, 2155240), (980, 1939716), (1008, 1885835), (1176, 1616430), (1260, 1508668), (1470, 1293144), (1680, 1131501), (1764, 1077620), (1960, 969858), (2205, 862096), (2352, 808215), (2520, 754334), (2940, 646572), (3528, 538810), (3920, 484929), (4410, 431048), (5040, 377167), (5880, 323286), (7056, 269405), (8820, 215524), (11760, 161643), (17640, 107762), (35280, 53881)]