28850820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1871}}^1$

素因数の和:2140

約数の個数: 48

約数和(自身を含む): 81139968

約数和(自身を除く): 52289148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 257, 514, 771, 1028, 1285, 1542, 1871, 2570, 3084, 3742, 3855, 5140, 5613, 7484, 7710, 9355, 11226, 15420, 18710, 22452, 28065, 37420, 56130, 112260, 480847, 961694, 1442541, 1923388, 2404235, 2885082, 4808470, 5770164, 7212705, 9616940, 14425410, 28850820]

約数ペア:

[(1, 28850820), (2, 14425410), (3, 9616940), (4, 7212705), (5, 5770164), (6, 4808470), (10, 2885082), (12, 2404235), (15, 1923388), (20, 1442541), (30, 961694), (60, 480847), (257, 112260), (514, 56130), (771, 37420), (1028, 28065), (1285, 22452), (1542, 18710), (1871, 15420), (2570, 11226), (3084, 9355), (3742, 7710), (3855, 7484), (5140, 5613)]