20007120

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11909}}^1$

素因数の和:11932

約数の個数: 80

約数和(自身を含む): 70888320

約数和(自身を除く): 50881200

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, 11909, 23818, 35727, 47636, 59545, 71454, 83363, 95272, 119090, 142908, 166726, 178635, 190544, 238180, 250089, 285816, 333452, 357270, 416815, 476360, 500178, 571632, 666904, 714540, 833630, 952720, 1000356, 1250445, 1333808, 1429080, 1667260, 2000712, 2500890, 2858160, 3334520, 4001424, 5001780, 6669040, 10003560, 20007120]

約数ペア:

[(1, 20007120), (2, 10003560), (3, 6669040), (4, 5001780), (5, 4001424), (6, 3334520), (7, 2858160), (8, 2500890), (10, 2000712), (12, 1667260), (14, 1429080), (15, 1333808), (16, 1250445), (20, 1000356), (21, 952720), (24, 833630), (28, 714540), (30, 666904), (35, 571632), (40, 500178), (42, 476360), (48, 416815), (56, 357270), (60, 333452), (70, 285816), (80, 250089), (84, 238180), (105, 190544), (112, 178635), (120, 166726), (140, 142908), (168, 119090), (210, 95272), (240, 83363), (280, 71454), (336, 59545), (420, 47636), (560, 35727), (840, 23818), (1680, 11909)]