19845840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11813}}^1$

素因数の和:11836

約数の個数: 80

約数和(自身を含む): 70316928

約数和(自身を除く): 50471088

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 11813, 23626, 35439, 47252, 59065, 70878, 82691, 94504, 118130, 141756, 165382, 177195, 189008, 236260, 248073, 283512, 330764, 354390, 413455, 472520, 496146, 567024, 661528, 708780, 826910, 945040, 992292, 1240365, 1323056, 1417560, 1653820, 1984584, 2480730, 2835120, 3307640, 3969168, 4961460, 6615280, 9922920, 19845840]

約数ペア:

[(1, 19845840), (2, 9922920), (3, 6615280), (4, 4961460), (5, 3969168), (6, 3307640), (7, 2835120), (8, 2480730), (10, 1984584), (12, 1653820), (14, 1417560), (15, 1323056), (16, 1240365), (20, 992292), (21, 945040), (24, 826910), (28, 708780), (30, 661528), (35, 567024), (40, 496146), (42, 472520), (48, 413455), (56, 354390), (60, 330764), (70, 283512), (80, 248073), (84, 236260), (105, 189008), (112, 177195), (120, 165382), (140, 141756), (168, 118130), (210, 94504), (240, 82691), (280, 70878), (336, 59065), (420, 47252), (560, 35439), (840, 23626), (1680, 11813)]