84787120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{461}}^1$

素因数の和:515

約数の個数: 120

約数和(自身を含む): 228579120

約数和(自身を除く): 143792000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 121, 152, 176, 190, 209, 220, 242, 304, 380, 418, 440, 461, 484, 605, 760, 836, 880, 922, 968, 1045, 1210, 1520, 1672, 1844, 1936, 2090, 2299, 2305, 2420, 3344, 3688, 4180, 4598, 4610, 4840, 5071, 7376, 8360, 8759, 9196, 9220, 9680, 10142, 11495, 16720, 17518, 18392, 18440, 20284, 22990, 25355, 35036, 36784, 36880, 40568, 43795, 45980, 50710, 55781, 70072, 81136, 87590, 91960, 96349, 101420, 111562, 140144, 175180, 183920, 192698, 202840, 223124, 278905, 350360, 385396, 405680, 446248, 481745, 557810, 700720, 770792, 892496, 963490, 1059839, 1115620, 1541584, 1926980, 2119678, 2231240, 3853960, 4239356, 4462480, 5299195, 7707920, 8478712, 10598390, 16957424, 21196780, 42393560, 84787120]

約数ペア:

[(1, 84787120), (2, 42393560), (4, 21196780), (5, 16957424), (8, 10598390), (10, 8478712), (11, 7707920), (16, 5299195), (19, 4462480), (20, 4239356), (22, 3853960), (38, 2231240), (40, 2119678), (44, 1926980), (55, 1541584), (76, 1115620), (80, 1059839), (88, 963490), (95, 892496), (110, 770792), (121, 700720), (152, 557810), (176, 481745), (190, 446248), (209, 405680), (220, 385396), (242, 350360), (304, 278905), (380, 223124), (418, 202840), (440, 192698), (461, 183920), (484, 175180), (605, 140144), (760, 111562), (836, 101420), (880, 96349), (922, 91960), (968, 87590), (1045, 81136), (1210, 70072), (1520, 55781), (1672, 50710), (1844, 45980), (1936, 43795), (2090, 40568), (2299, 36880), (2305, 36784), (2420, 35036), (3344, 25355), (3688, 22990), (4180, 20284), (4598, 18440), (4610, 18392), (4840, 17518), (5071, 16720), (7376, 11495), (8360, 10142), (8759, 9680), (9196, 9220)]