172941720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{205883}}^1$

素因数の和:205904

約数の個数: 64

約数和(自身を含む): 592945920

約数和(自身を除く): 420004200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 205883, 411766, 617649, 823532, 1029415, 1235298, 1441181, 1647064, 2058830, 2470596, 2882362, 3088245, 4117660, 4323543, 4941192, 5764724, 6176490, 7205905, 8235320, 8647086, 11529448, 12352980, 14411810, 17294172, 21617715, 24705960, 28823620, 34588344, 43235430, 57647240, 86470860, 172941720]

約数ペア:

[(1, 172941720), (2, 86470860), (3, 57647240), (4, 43235430), (5, 34588344), (6, 28823620), (7, 24705960), (8, 21617715), (10, 17294172), (12, 14411810), (14, 12352980), (15, 11529448), (20, 8647086), (21, 8235320), (24, 7205905), (28, 6176490), (30, 5764724), (35, 4941192), (40, 4323543), (42, 4117660), (56, 3088245), (60, 2882362), (70, 2470596), (84, 2058830), (105, 1647064), (120, 1441181), (140, 1235298), (168, 1029415), (210, 823532), (280, 617649), (420, 411766), (840, 205883)]