161962020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81799}}^1$

素因数の和:81825

約数の個数: 72

約数和(自身を含む): 535953600

約数和(自身を除く): 373991580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 81799, 163598, 245397, 327196, 408995, 490794, 736191, 817990, 899789, 981588, 1226985, 1472382, 1635980, 1799578, 2453970, 2699367, 2944764, 3599156, 3680955, 4498945, 4907940, 5398734, 7361910, 8098101, 8997890, 10797468, 13496835, 14723820, 16196202, 17995780, 26993670, 32392404, 40490505, 53987340, 80981010, 161962020]

約数ペア:

[(1, 161962020), (2, 80981010), (3, 53987340), (4, 40490505), (5, 32392404), (6, 26993670), (9, 17995780), (10, 16196202), (11, 14723820), (12, 13496835), (15, 10797468), (18, 8997890), (20, 8098101), (22, 7361910), (30, 5398734), (33, 4907940), (36, 4498945), (44, 3680955), (45, 3599156), (55, 2944764), (60, 2699367), (66, 2453970), (90, 1799578), (99, 1635980), (110, 1472382), (132, 1226985), (165, 981588), (180, 899789), (198, 817990), (220, 736191), (330, 490794), (396, 408995), (495, 327196), (660, 245397), (990, 163598), (1980, 81799)]