20512247260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{373}}^1\times {\mathrm{161743}}^1$

素因数の和:162142

約数の個数: 48

約数和(自身を含む): 45732145536

約数和(自身を除く): 25219898276

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 373, 746, 1492, 1865, 3730, 6341, 7460, 12682, 25364, 31705, 63410, 126820, 161743, 323486, 646972, 808715, 1617430, 2749631, 3234860, 5499262, 10998524, 13748155, 27496310, 54992620, 60330139, 120660278, 241320556, 301650695, 603301390, 1025612363, 1206602780, 2051224726, 4102449452, 5128061815, 10256123630, 20512247260]

約数ペア:

[(1, 20512247260), (2, 10256123630), (4, 5128061815), (5, 4102449452), (10, 2051224726), (17, 1206602780), (20, 1025612363), (34, 603301390), (68, 301650695), (85, 241320556), (170, 120660278), (340, 60330139), (373, 54992620), (746, 27496310), (1492, 13748155), (1865, 10998524), (3730, 5499262), (6341, 3234860), (7460, 2749631), (12682, 1617430), (25364, 808715), (31705, 646972), (63410, 323486), (126820, 161743)]