1981977840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{45127}}^1$

素因数の和:45207

約数の個数: 120

約数和(自身を含む): 6765409248

約数和(自身を除く): 4783431408

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 61, 72, 80, 90, 120, 122, 144, 180, 183, 240, 244, 305, 360, 366, 488, 549, 610, 720, 732, 915, 976, 1098, 1220, 1464, 1830, 2196, 2440, 2745, 2928, 3660, 4392, 4880, 5490, 7320, 8784, 10980, 14640, 21960, 43920, 45127, 90254, 135381, 180508, 225635, 270762, 361016, 406143, 451270, 541524, 676905, 722032, 812286, 902540, 1083048, 1353810, 1624572, 1805080, 2030715, 2166096, 2707620, 2752747, 3249144, 3610160, 4061430, 5415240, 5505494, 6498288, 8122860, 8258241, 10830480, 11010988, 13763735, 16245720, 16516482, 22021976, 24774723, 27527470, 32491440, 33032964, 41291205, 44043952, 49549446, 55054940, 66065928, 82582410, 99098892, 110109880, 123873615, 132131856, 165164820, 198197784, 220219760, 247747230, 330329640, 396395568, 495494460, 660659280, 990988920, 1981977840]

約数ペア:

[(1, 1981977840), (2, 990988920), (3, 660659280), (4, 495494460), (5, 396395568), (6, 330329640), (8, 247747230), (9, 220219760), (10, 198197784), (12, 165164820), (15, 132131856), (16, 123873615), (18, 110109880), (20, 99098892), (24, 82582410), (30, 66065928), (36, 55054940), (40, 49549446), (45, 44043952), (48, 41291205), (60, 33032964), (61, 32491440), (72, 27527470), (80, 24774723), (90, 22021976), (120, 16516482), (122, 16245720), (144, 13763735), (180, 11010988), (183, 10830480), (240, 8258241), (244, 8122860), (305, 6498288), (360, 5505494), (366, 5415240), (488, 4061430), (549, 3610160), (610, 3249144), (720, 2752747), (732, 2707620), (915, 2166096), (976, 2030715), (1098, 1805080), (1220, 1624572), (1464, 1353810), (1830, 1083048), (2196, 902540), (2440, 812286), (2745, 722032), (2928, 676905), (3660, 541524), (4392, 451270), (4880, 406143), (5490, 361016), (7320, 270762), (8784, 225635), (10980, 180508), (14640, 135381), (21960, 90254), (43920, 45127)]