68191340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{467}}^1$

素因数の和:639

約数の個数: 72

約数和(自身を含む): 168058800

約数和(自身を除く): 99867460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 149, 196, 245, 298, 467, 490, 596, 745, 934, 980, 1043, 1490, 1868, 2086, 2335, 2980, 3269, 4172, 4670, 5215, 6538, 7301, 9340, 10430, 13076, 14602, 16345, 20860, 22883, 29204, 32690, 36505, 45766, 65380, 69583, 73010, 91532, 114415, 139166, 146020, 228830, 278332, 347915, 457660, 487081, 695830, 974162, 1391660, 1948324, 2435405, 3409567, 4870810, 6819134, 9741620, 13638268, 17047835, 34095670, 68191340]

約数ペア:

[(1, 68191340), (2, 34095670), (4, 17047835), (5, 13638268), (7, 9741620), (10, 6819134), (14, 4870810), (20, 3409567), (28, 2435405), (35, 1948324), (49, 1391660), (70, 974162), (98, 695830), (140, 487081), (149, 457660), (196, 347915), (245, 278332), (298, 228830), (467, 146020), (490, 139166), (596, 114415), (745, 91532), (934, 73010), (980, 69583), (1043, 65380), (1490, 45766), (1868, 36505), (2086, 32690), (2335, 29204), (2980, 22883), (3269, 20860), (4172, 16345), (4670, 14602), (5215, 13076), (6538, 10430), (7301, 9340)]