217780740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{2377}}^1$

素因数の和:2901

約数の個数: 72

約数和(自身を含む): 662177880

約数和(自身を除く): 444397140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 509, 1018, 1527, 2036, 2377, 2545, 3054, 4581, 4754, 5090, 6108, 7131, 7635, 9162, 9508, 10180, 11885, 14262, 15270, 18324, 21393, 22905, 23770, 28524, 30540, 35655, 42786, 45810, 47540, 71310, 85572, 91620, 106965, 142620, 213930, 427860, 1209893, 2419786, 3629679, 4839572, 6049465, 7259358, 10889037, 12098930, 14518716, 18148395, 21778074, 24197860, 36296790, 43556148, 54445185, 72593580, 108890370, 217780740]

約数ペア:

[(1, 217780740), (2, 108890370), (3, 72593580), (4, 54445185), (5, 43556148), (6, 36296790), (9, 24197860), (10, 21778074), (12, 18148395), (15, 14518716), (18, 12098930), (20, 10889037), (30, 7259358), (36, 6049465), (45, 4839572), (60, 3629679), (90, 2419786), (180, 1209893), (509, 427860), (1018, 213930), (1527, 142620), (2036, 106965), (2377, 91620), (2545, 85572), (3054, 71310), (4581, 47540), (4754, 45810), (5090, 42786), (6108, 35655), (7131, 30540), (7635, 28524), (9162, 23770), (9508, 22905), (10180, 21393), (11885, 18324), (14262, 15270)]