280950540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{360193}}^1$

素因数の和:360218

約数の個数: 48

約数和(自身を含む): 847176288

約数和(自身を除く): 566225748

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, 360193, 720386, 1080579, 1440772, 1800965, 2161158, 3601930, 4322316, 4682509, 5402895, 7203860, 9365018, 10805790, 14047527, 18730036, 21611580, 23412545, 28095054, 46825090, 56190108, 70237635, 93650180, 140475270, 280950540]

約数ペア:

[(1, 280950540), (2, 140475270), (3, 93650180), (4, 70237635), (5, 56190108), (6, 46825090), (10, 28095054), (12, 23412545), (13, 21611580), (15, 18730036), (20, 14047527), (26, 10805790), (30, 9365018), (39, 7203860), (52, 5402895), (60, 4682509), (65, 4322316), (78, 3601930), (130, 2161158), (156, 1800965), (195, 1440772), (260, 1080579), (390, 720386), (780, 360193)]