20223770

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{277}}^1$

素因数の和:447

約数の個数: 48

約数和(自身を含む): 42784200

約数和(自身を除く): 22560430

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 149, 245, 277, 298, 490, 554, 745, 1043, 1385, 1490, 1939, 2086, 2770, 3878, 5215, 7301, 9695, 10430, 13573, 14602, 19390, 27146, 36505, 41273, 67865, 73010, 82546, 135730, 206365, 288911, 412730, 577822, 1444555, 2022377, 2889110, 4044754, 10111885, 20223770]

約数ペア:

[(1, 20223770), (2, 10111885), (5, 4044754), (7, 2889110), (10, 2022377), (14, 1444555), (35, 577822), (49, 412730), (70, 288911), (98, 206365), (149, 135730), (245, 82546), (277, 73010), (298, 67865), (490, 41273), (554, 36505), (745, 27146), (1043, 19390), (1385, 14602), (1490, 13573), (1939, 10430), (2086, 9695), (2770, 7301), (3878, 5215)]