1521780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1951}}^1$

素因数の和:1976

約数の個数: 48

約数和(自身を含む): 4591104

約数和(自身を除く): 3069324

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 1951, 3902, 5853, 7804, 9755, 11706, 19510, 23412, 25363, 29265, 39020, 50726, 58530, 76089, 101452, 117060, 126815, 152178, 253630, 304356, 380445, 507260, 760890, 1521780]

約数ペア:

[(1, 1521780), (2, 760890), (3, 507260), (4, 380445), (5, 304356), (6, 253630), (10, 152178), (12, 126815), (13, 117060), (15, 101452), (20, 76089), (26, 58530), (30, 50726), (39, 39020), (52, 29265), (60, 25363), (65, 23412), (78, 19510), (130, 11706), (156, 9755), (195, 7804), (260, 5853), (390, 3902), (780, 1951)]