398978928

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{643}}^1$

素因数の和:827

約数の個数: 120

約数和(自身を含む): 1162703360

約数和(自身を除く): 763724432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 48, 62, 72, 93, 124, 139, 144, 186, 248, 278, 279, 372, 417, 496, 556, 558, 643, 744, 834, 1112, 1116, 1251, 1286, 1488, 1668, 1929, 2224, 2232, 2502, 2572, 3336, 3858, 4309, 4464, 5004, 5144, 5787, 6672, 7716, 8618, 10008, 10288, 11574, 12927, 15432, 17236, 19933, 20016, 23148, 25854, 30864, 34472, 38781, 39866, 46296, 51708, 59799, 68944, 77562, 79732, 89377, 92592, 103416, 119598, 155124, 159464, 178754, 179397, 206832, 239196, 268131, 310248, 318928, 357508, 358794, 478392, 536262, 620496, 715016, 717588, 804393, 956784, 1072524, 1430032, 1435176, 1608786, 2145048, 2770687, 2870352, 3217572, 4290096, 5541374, 6435144, 8312061, 11082748, 12870288, 16624122, 22165496, 24936183, 33248244, 44330992, 49872366, 66496488, 99744732, 132992976, 199489464, 398978928]

約数ペア:

[(1, 398978928), (2, 199489464), (3, 132992976), (4, 99744732), (6, 66496488), (8, 49872366), (9, 44330992), (12, 33248244), (16, 24936183), (18, 22165496), (24, 16624122), (31, 12870288), (36, 11082748), (48, 8312061), (62, 6435144), (72, 5541374), (93, 4290096), (124, 3217572), (139, 2870352), (144, 2770687), (186, 2145048), (248, 1608786), (278, 1435176), (279, 1430032), (372, 1072524), (417, 956784), (496, 804393), (556, 717588), (558, 715016), (643, 620496), (744, 536262), (834, 478392), (1112, 358794), (1116, 357508), (1251, 318928), (1286, 310248), (1488, 268131), (1668, 239196), (1929, 206832), (2224, 179397), (2232, 178754), (2502, 159464), (2572, 155124), (3336, 119598), (3858, 103416), (4309, 92592), (4464, 89377), (5004, 79732), (5144, 77562), (5787, 68944), (6672, 59799), (7716, 51708), (8618, 46296), (10008, 39866), (10288, 38781), (11574, 34472), (12927, 30864), (15432, 25854), (17236, 23148), (19933, 20016)]