19940220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2357}}^1$

素因数の和:2419

約数の個数: 72

約数和(自身を含む): 61798464

約数和(自身を除く): 41858244

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 2115, 2357, 2820, 4230, 4714, 7071, 8460, 9428, 11785, 14142, 21213, 23570, 28284, 35355, 42426, 47140, 70710, 84852, 106065, 110779, 141420, 212130, 221558, 332337, 424260, 443116, 553895, 664674, 997011, 1107790, 1329348, 1661685, 1994022, 2215580, 3323370, 3988044, 4985055, 6646740, 9970110, 19940220]

約数ペア:

[(1, 19940220), (2, 9970110), (3, 6646740), (4, 4985055), (5, 3988044), (6, 3323370), (9, 2215580), (10, 1994022), (12, 1661685), (15, 1329348), (18, 1107790), (20, 997011), (30, 664674), (36, 553895), (45, 443116), (47, 424260), (60, 332337), (90, 221558), (94, 212130), (141, 141420), (180, 110779), (188, 106065), (235, 84852), (282, 70710), (423, 47140), (470, 42426), (564, 35355), (705, 28284), (846, 23570), (940, 21213), (1410, 14142), (1692, 11785), (2115, 9428), (2357, 8460), (2820, 7071), (4230, 4714)]