28763980

素因数分解:

$2^2\times 5^1\times 7^4\times {\mathrm{599}}^1$

素因数の和:636

約数の個数: 60

約数和(自身を含む): 70585200

約数和(自身を除く): 41821220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 599, 686, 980, 1198, 1372, 1715, 2396, 2401, 2995, 3430, 4193, 4802, 5990, 6860, 8386, 9604, 11980, 12005, 16772, 20965, 24010, 29351, 41930, 48020, 58702, 83860, 117404, 146755, 205457, 293510, 410914, 587020, 821828, 1027285, 1438199, 2054570, 2876398, 4109140, 5752796, 7190995, 14381990, 28763980]

約数ペア:

[(1, 28763980), (2, 14381990), (4, 7190995), (5, 5752796), (7, 4109140), (10, 2876398), (14, 2054570), (20, 1438199), (28, 1027285), (35, 821828), (49, 587020), (70, 410914), (98, 293510), (140, 205457), (196, 146755), (245, 117404), (343, 83860), (490, 58702), (599, 48020), (686, 41930), (980, 29351), (1198, 24010), (1372, 20965), (1715, 16772), (2396, 12005), (2401, 11980), (2995, 9604), (3430, 8386), (4193, 6860), (4802, 5990)]