81964260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{9293}}^1$

素因数の和:9322

約数の個数: 108

約数和(自身を含む): 289247868

約数和(自身を除く): 207283608

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 9293, 18586, 27879, 37172, 46465, 55758, 65051, 83637, 92930, 111516, 130102, 139395, 167274, 185860, 195153, 260204, 278790, 325255, 334548, 390306, 418185, 455357, 557580, 585459, 650510, 780612, 836370, 910714, 975765, 1170918, 1301020, 1366071, 1672740, 1821428, 1951530, 2276785, 2341836, 2732142, 2927295, 3903060, 4098213, 4553570, 5464284, 5854590, 6830355, 8196426, 9107140, 11709180, 13660710, 16392852, 20491065, 27321420, 40982130, 81964260]

約数ペア:

[(1, 81964260), (2, 40982130), (3, 27321420), (4, 20491065), (5, 16392852), (6, 13660710), (7, 11709180), (9, 9107140), (10, 8196426), (12, 6830355), (14, 5854590), (15, 5464284), (18, 4553570), (20, 4098213), (21, 3903060), (28, 2927295), (30, 2732142), (35, 2341836), (36, 2276785), (42, 1951530), (45, 1821428), (49, 1672740), (60, 1366071), (63, 1301020), (70, 1170918), (84, 975765), (90, 910714), (98, 836370), (105, 780612), (126, 650510), (140, 585459), (147, 557580), (180, 455357), (196, 418185), (210, 390306), (245, 334548), (252, 325255), (294, 278790), (315, 260204), (420, 195153), (441, 185860), (490, 167274), (588, 139395), (630, 130102), (735, 111516), (882, 92930), (980, 83637), (1260, 65051), (1470, 55758), (1764, 46465), (2205, 37172), (2940, 27879), (4410, 18586), (8820, 9293)]