161630420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{1259}}^1$

素因数の和:1413

約数の個数: 72

約数和(自身を含む): 398170080

約数和(自身を除く): 236539660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 131, 140, 196, 245, 262, 490, 524, 655, 917, 980, 1259, 1310, 1834, 2518, 2620, 3668, 4585, 5036, 6295, 6419, 8813, 9170, 12590, 12838, 17626, 18340, 25180, 25676, 32095, 35252, 44065, 61691, 64190, 88130, 123382, 128380, 164929, 176260, 246764, 308455, 329858, 616910, 659716, 824645, 1154503, 1233820, 1649290, 2309006, 3298580, 4618012, 5772515, 8081521, 11545030, 16163042, 23090060, 32326084, 40407605, 80815210, 161630420]

約数ペア:

[(1, 161630420), (2, 80815210), (4, 40407605), (5, 32326084), (7, 23090060), (10, 16163042), (14, 11545030), (20, 8081521), (28, 5772515), (35, 4618012), (49, 3298580), (70, 2309006), (98, 1649290), (131, 1233820), (140, 1154503), (196, 824645), (245, 659716), (262, 616910), (490, 329858), (524, 308455), (655, 246764), (917, 176260), (980, 164929), (1259, 128380), (1310, 123382), (1834, 88130), (2518, 64190), (2620, 61691), (3668, 44065), (4585, 35252), (5036, 32095), (6295, 25676), (6419, 25180), (8813, 18340), (9170, 17626), (12590, 12838)]