655621680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{983}}^1$

素因数の和:1403

約数の個数: 160

約数和(自身を含む): 2330993664

約数和(自身を除く): 1675371984

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 397, 420, 560, 794, 840, 983, 1191, 1588, 1680, 1966, 1985, 2382, 2779, 2949, 3176, 3932, 3970, 4764, 4915, 5558, 5898, 5955, 6352, 6881, 7864, 7940, 8337, 9528, 9830, 11116, 11796, 11910, 13762, 13895, 14745, 15728, 15880, 16674, 19056, 19660, 20643, 22232, 23592, 23820, 27524, 27790, 29490, 31760, 33348, 34405, 39320, 41286, 41685, 44464, 47184, 47640, 55048, 55580, 58980, 66696, 68810, 78640, 82572, 83370, 95280, 103215, 110096, 111160, 117960, 133392, 137620, 165144, 166740, 206430, 222320, 235920, 275240, 330288, 333480, 390251, 412860, 550480, 666960, 780502, 825720, 1170753, 1561004, 1651440, 1951255, 2341506, 2731757, 3122008, 3902510, 4683012, 5463514, 5853765, 6244016, 7805020, 8195271, 9366024, 10927028, 11707530, 13658785, 15610040, 16390542, 18732048, 21854056, 23415060, 27317570, 31220080, 32781084, 40976355, 43708112, 46830120, 54635140, 65562168, 81952710, 93660240, 109270280, 131124336, 163905420, 218540560, 327810840, 655621680]

約数ペア:

[(1, 655621680), (2, 327810840), (3, 218540560), (4, 163905420), (5, 131124336), (6, 109270280), (7, 93660240), (8, 81952710), (10, 65562168), (12, 54635140), (14, 46830120), (15, 43708112), (16, 40976355), (20, 32781084), (21, 31220080), (24, 27317570), (28, 23415060), (30, 21854056), (35, 18732048), (40, 16390542), (42, 15610040), (48, 13658785), (56, 11707530), (60, 10927028), (70, 9366024), (80, 8195271), (84, 7805020), (105, 6244016), (112, 5853765), (120, 5463514), (140, 4683012), (168, 3902510), (210, 3122008), (240, 2731757), (280, 2341506), (336, 1951255), (397, 1651440), (420, 1561004), (560, 1170753), (794, 825720), (840, 780502), (983, 666960), (1191, 550480), (1588, 412860), (1680, 390251), (1966, 333480), (1985, 330288), (2382, 275240), (2779, 235920), (2949, 222320), (3176, 206430), (3932, 166740), (3970, 165144), (4764, 137620), (4915, 133392), (5558, 117960), (5898, 111160), (5955, 110096), (6352, 103215), (6881, 95280), (7864, 83370), (7940, 82572), (8337, 78640), (9528, 68810), (9830, 66696), (11116, 58980), (11796, 55580), (11910, 55048), (13762, 47640), (13895, 47184), (14745, 44464), (15728, 41685), (15880, 41286), (16674, 39320), (19056, 34405), (19660, 33348), (20643, 31760), (22232, 29490), (23592, 27790), (23820, 27524)]