821300460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{720439}}^1$

素因数の和:720470

約数の個数: 48

約数和(自身を含む): 2420678400

約数和(自身を除く): 1599377940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 720439, 1440878, 2161317, 2881756, 3602195, 4322634, 7204390, 8645268, 10806585, 13688341, 14408780, 21613170, 27376682, 41065023, 43226340, 54753364, 68441705, 82130046, 136883410, 164260092, 205325115, 273766820, 410650230, 821300460]

約数ペア:

[(1, 821300460), (2, 410650230), (3, 273766820), (4, 205325115), (5, 164260092), (6, 136883410), (10, 82130046), (12, 68441705), (15, 54753364), (19, 43226340), (20, 41065023), (30, 27376682), (38, 21613170), (57, 14408780), (60, 13688341), (76, 10806585), (95, 8645268), (114, 7204390), (190, 4322634), (228, 3602195), (285, 2881756), (380, 2161317), (570, 1440878), (1140, 720439)]