1211340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1553}}^1$

素因数の和:1578

約数の個数: 48

約数和(自身を含む): 3655008

約数和(自身を除く): 2443668

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, 1553, 3106, 4659, 6212, 7765, 9318, 15530, 18636, 20189, 23295, 31060, 40378, 46590, 60567, 80756, 93180, 100945, 121134, 201890, 242268, 302835, 403780, 605670, 1211340]

約数ペア:

[(1, 1211340), (2, 605670), (3, 403780), (4, 302835), (5, 242268), (6, 201890), (10, 121134), (12, 100945), (13, 93180), (15, 80756), (20, 60567), (26, 46590), (30, 40378), (39, 31060), (52, 23295), (60, 20189), (65, 18636), (78, 15530), (130, 9318), (156, 7765), (195, 6212), (260, 4659), (390, 3106), (780, 1553)]