27889820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{191}}^1$

素因数の和:363

約数の個数: 72

約数和(自身を含む): 68947200

約数和(自身を除く): 41057380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 149, 191, 196, 245, 298, 382, 490, 596, 745, 764, 955, 980, 1043, 1337, 1490, 1910, 2086, 2674, 2980, 3820, 4172, 5215, 5348, 6685, 7301, 9359, 10430, 13370, 14602, 18718, 20860, 26740, 28459, 29204, 36505, 37436, 46795, 56918, 73010, 93590, 113836, 142295, 146020, 187180, 199213, 284590, 398426, 569180, 796852, 996065, 1394491, 1992130, 2788982, 3984260, 5577964, 6972455, 13944910, 27889820]

約数ペア:

[(1, 27889820), (2, 13944910), (4, 6972455), (5, 5577964), (7, 3984260), (10, 2788982), (14, 1992130), (20, 1394491), (28, 996065), (35, 796852), (49, 569180), (70, 398426), (98, 284590), (140, 199213), (149, 187180), (191, 146020), (196, 142295), (245, 113836), (298, 93590), (382, 73010), (490, 56918), (596, 46795), (745, 37436), (764, 36505), (955, 29204), (980, 28459), (1043, 26740), (1337, 20860), (1490, 18718), (1910, 14602), (2086, 13370), (2674, 10430), (2980, 9359), (3820, 7301), (4172, 6685), (5215, 5348)]