19221720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{467}}^1$

素因数の和:502

約数の個数: 128

約数和(自身を含む): 67392000

約数和(自身を除く): 48170280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 343, 392, 420, 467, 490, 588, 686, 735, 840, 934, 980, 1029, 1176, 1372, 1401, 1470, 1715, 1868, 1960, 2058, 2335, 2744, 2802, 2940, 3269, 3430, 3736, 4116, 4670, 5145, 5604, 5880, 6538, 6860, 7005, 8232, 9340, 9807, 10290, 11208, 13076, 13720, 14010, 16345, 18680, 19614, 20580, 22883, 26152, 28020, 32690, 39228, 41160, 45766, 49035, 56040, 65380, 68649, 78456, 91532, 98070, 114415, 130760, 137298, 160181, 183064, 196140, 228830, 274596, 320362, 343245, 392280, 457660, 480543, 549192, 640724, 686490, 800905, 915320, 961086, 1281448, 1372980, 1601810, 1922172, 2402715, 2745960, 3203620, 3844344, 4805430, 6407240, 9610860, 19221720]

約数ペア:

[(1, 19221720), (2, 9610860), (3, 6407240), (4, 4805430), (5, 3844344), (6, 3203620), (7, 2745960), (8, 2402715), (10, 1922172), (12, 1601810), (14, 1372980), (15, 1281448), (20, 961086), (21, 915320), (24, 800905), (28, 686490), (30, 640724), (35, 549192), (40, 480543), (42, 457660), (49, 392280), (56, 343245), (60, 320362), (70, 274596), (84, 228830), (98, 196140), (105, 183064), (120, 160181), (140, 137298), (147, 130760), (168, 114415), (196, 98070), (210, 91532), (245, 78456), (280, 68649), (294, 65380), (343, 56040), (392, 49035), (420, 45766), (467, 41160), (490, 39228), (588, 32690), (686, 28020), (735, 26152), (840, 22883), (934, 20580), (980, 19614), (1029, 18680), (1176, 16345), (1372, 14010), (1401, 13720), (1470, 13076), (1715, 11208), (1868, 10290), (1960, 9807), (2058, 9340), (2335, 8232), (2744, 7005), (2802, 6860), (2940, 6538), (3269, 5880), (3430, 5604), (3736, 5145), (4116, 4670)]