21192918520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{5507}}^1$

素因数の和:5677

約数の個数: 128

約数和(自身を含む): 51396249600

約数和(自身を除く): 30203331080

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 47, 89, 92, 94, 115, 178, 184, 188, 230, 235, 356, 376, 445, 460, 470, 712, 890, 920, 940, 1081, 1780, 1880, 2047, 2162, 3560, 4094, 4183, 4324, 5405, 5507, 8188, 8366, 8648, 10235, 10810, 11014, 16376, 16732, 20470, 20915, 21620, 22028, 27535, 33464, 40940, 41830, 43240, 44056, 55070, 81880, 83660, 96209, 110140, 126661, 167320, 192418, 220280, 253322, 258829, 384836, 481045, 490123, 506644, 517658, 633305, 769672, 962090, 980246, 1013288, 1035316, 1266610, 1294145, 1924180, 1960492, 2070632, 2450615, 2533220, 2588290, 3848360, 3920984, 4901230, 5066440, 5176580, 5953067, 9802460, 10353160, 11272829, 11906134, 19604920, 22545658, 23035781, 23812268, 29765335, 45091316, 46071562, 47624536, 56364145, 59530670, 90182632, 92143124, 112728290, 115178905, 119061340, 184286248, 225456580, 230357810, 238122680, 450913160, 460715620, 529822963, 921431240, 1059645926, 2119291852, 2649114815, 4238583704, 5298229630, 10596459260, 21192918520]

約数ペア:

[(1, 21192918520), (2, 10596459260), (4, 5298229630), (5, 4238583704), (8, 2649114815), (10, 2119291852), (20, 1059645926), (23, 921431240), (40, 529822963), (46, 460715620), (47, 450913160), (89, 238122680), (92, 230357810), (94, 225456580), (115, 184286248), (178, 119061340), (184, 115178905), (188, 112728290), (230, 92143124), (235, 90182632), (356, 59530670), (376, 56364145), (445, 47624536), (460, 46071562), (470, 45091316), (712, 29765335), (890, 23812268), (920, 23035781), (940, 22545658), (1081, 19604920), (1780, 11906134), (1880, 11272829), (2047, 10353160), (2162, 9802460), (3560, 5953067), (4094, 5176580), (4183, 5066440), (4324, 4901230), (5405, 3920984), (5507, 3848360), (8188, 2588290), (8366, 2533220), (8648, 2450615), (10235, 2070632), (10810, 1960492), (11014, 1924180), (16376, 1294145), (16732, 1266610), (20470, 1035316), (20915, 1013288), (21620, 980246), (22028, 962090), (27535, 769672), (33464, 633305), (40940, 517658), (41830, 506644), (43240, 490123), (44056, 481045), (55070, 384836), (81880, 258829), (83660, 253322), (96209, 220280), (110140, 192418), (126661, 167320)]