287566180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{331}}^1\times {\mathrm{359}}^1$

素因数の和:721

約数の個数: 72

約数和(自身を含む): 667638720

約数和(自身を除く): 380072540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 331, 359, 484, 605, 662, 718, 1210, 1324, 1436, 1655, 1795, 2420, 3310, 3590, 3641, 3949, 6620, 7180, 7282, 7898, 14564, 15796, 18205, 19745, 36410, 39490, 40051, 43439, 72820, 78980, 80102, 86878, 118829, 160204, 173756, 200255, 217195, 237658, 400510, 434390, 475316, 594145, 801020, 868780, 1188290, 1307119, 2376580, 2614238, 5228476, 6535595, 13071190, 14378309, 26142380, 28756618, 57513236, 71891545, 143783090, 287566180]

約数ペア:

[(1, 287566180), (2, 143783090), (4, 71891545), (5, 57513236), (10, 28756618), (11, 26142380), (20, 14378309), (22, 13071190), (44, 6535595), (55, 5228476), (110, 2614238), (121, 2376580), (220, 1307119), (242, 1188290), (331, 868780), (359, 801020), (484, 594145), (605, 475316), (662, 434390), (718, 400510), (1210, 237658), (1324, 217195), (1436, 200255), (1655, 173756), (1795, 160204), (2420, 118829), (3310, 86878), (3590, 80102), (3641, 78980), (3949, 72820), (6620, 43439), (7180, 40051), (7282, 39490), (7898, 36410), (14564, 19745), (15796, 18205)]