278300300

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1061}}^1$

素因数の和:1179

約数の個数: 72

約数和(自身を含む): 628678512

約数和(自身を除く): 350378212

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 61, 86, 100, 122, 172, 215, 244, 305, 430, 610, 860, 1061, 1075, 1220, 1525, 2122, 2150, 2623, 3050, 4244, 4300, 5246, 5305, 6100, 10492, 10610, 13115, 21220, 26230, 26525, 45623, 52460, 53050, 64721, 65575, 91246, 106100, 129442, 131150, 182492, 228115, 258884, 262300, 323605, 456230, 647210, 912460, 1140575, 1294420, 1618025, 2281150, 2783003, 3236050, 4562300, 5566006, 6472100, 11132012, 13915015, 27830030, 55660060, 69575075, 139150150, 278300300]

約数ペア:

[(1, 278300300), (2, 139150150), (4, 69575075), (5, 55660060), (10, 27830030), (20, 13915015), (25, 11132012), (43, 6472100), (50, 5566006), (61, 4562300), (86, 3236050), (100, 2783003), (122, 2281150), (172, 1618025), (215, 1294420), (244, 1140575), (305, 912460), (430, 647210), (610, 456230), (860, 323605), (1061, 262300), (1075, 258884), (1220, 228115), (1525, 182492), (2122, 131150), (2150, 129442), (2623, 106100), (3050, 91246), (4244, 65575), (4300, 64721), (5246, 53050), (5305, 52460), (6100, 45623), (10492, 26525), (10610, 26230), (13115, 21220)]