408471220

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1\times {\mathrm{2389}}^1$

素因数の和:2584

約数の個数: 48

約数和(自身を含む): 876919680

約数和(自身を除く): 468448460

約数列:

[1, 2, 4, 5, 10, 20, 83, 103, 166, 206, 332, 412, 415, 515, 830, 1030, 1660, 2060, 2389, 4778, 8549, 9556, 11945, 17098, 23890, 34196, 42745, 47780, 85490, 170980, 198287, 246067, 396574, 492134, 793148, 984268, 991435, 1230335, 1982870, 2460670, 3965740, 4921340, 20423561, 40847122, 81694244, 102117805, 204235610, 408471220]

約数ペア:

[(1, 408471220), (2, 204235610), (4, 102117805), (5, 81694244), (10, 40847122), (20, 20423561), (83, 4921340), (103, 3965740), (166, 2460670), (206, 1982870), (332, 1230335), (412, 991435), (415, 984268), (515, 793148), (830, 492134), (1030, 396574), (1660, 246067), (2060, 198287), (2389, 170980), (4778, 85490), (8549, 47780), (9556, 42745), (11945, 34196), (17098, 23890)]