65478420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{331}}^1$

素因数の和:510

約数の個数: 144

約数和(自身を含む): 229127808

約数和(自身を除く): 163649388

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 157, 180, 210, 252, 314, 315, 331, 420, 471, 628, 630, 662, 785, 942, 993, 1099, 1260, 1324, 1413, 1570, 1655, 1884, 1986, 2198, 2317, 2355, 2826, 2979, 3140, 3297, 3310, 3972, 4396, 4634, 4710, 4965, 5495, 5652, 5958, 6594, 6620, 6951, 7065, 9268, 9420, 9891, 9930, 10990, 11585, 11916, 13188, 13902, 14130, 14895, 16485, 19782, 19860, 20853, 21980, 23170, 27804, 28260, 29790, 32970, 34755, 39564, 41706, 46340, 49455, 51967, 59580, 65940, 69510, 83412, 98910, 103934, 104265, 139020, 155901, 197820, 207868, 208530, 259835, 311802, 363769, 417060, 467703, 519670, 623604, 727538, 779505, 935406, 1039340, 1091307, 1455076, 1559010, 1818845, 1870812, 2182614, 2338515, 3118020, 3273921, 3637690, 4365228, 4677030, 5456535, 6547842, 7275380, 9354060, 10913070, 13095684, 16369605, 21826140, 32739210, 65478420]

約数ペア:

[(1, 65478420), (2, 32739210), (3, 21826140), (4, 16369605), (5, 13095684), (6, 10913070), (7, 9354060), (9, 7275380), (10, 6547842), (12, 5456535), (14, 4677030), (15, 4365228), (18, 3637690), (20, 3273921), (21, 3118020), (28, 2338515), (30, 2182614), (35, 1870812), (36, 1818845), (42, 1559010), (45, 1455076), (60, 1091307), (63, 1039340), (70, 935406), (84, 779505), (90, 727538), (105, 623604), (126, 519670), (140, 467703), (157, 417060), (180, 363769), (210, 311802), (252, 259835), (314, 208530), (315, 207868), (331, 197820), (420, 155901), (471, 139020), (628, 104265), (630, 103934), (662, 98910), (785, 83412), (942, 69510), (993, 65940), (1099, 59580), (1260, 51967), (1324, 49455), (1413, 46340), (1570, 41706), (1655, 39564), (1884, 34755), (1986, 32970), (2198, 29790), (2317, 28260), (2355, 27804), (2826, 23170), (2979, 21980), (3140, 20853), (3297, 19860), (3310, 19782), (3972, 16485), (4396, 14895), (4634, 14130), (4710, 13902), (4965, 13188), (5495, 11916), (5652, 11585), (5958, 10990), (6594, 9930), (6620, 9891), (6951, 9420), (7065, 9268)]