28353620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{937}}^1$

素因数の和:1052

約数の個数: 48

約数和(自身を含む): 63821520

約数和(自身を除く): 35467900

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 89, 170, 178, 340, 356, 445, 890, 937, 1513, 1780, 1874, 3026, 3748, 4685, 6052, 7565, 9370, 15130, 15929, 18740, 30260, 31858, 63716, 79645, 83393, 159290, 166786, 318580, 333572, 416965, 833930, 1417681, 1667860, 2835362, 5670724, 7088405, 14176810, 28353620]

約数ペア:

[(1, 28353620), (2, 14176810), (4, 7088405), (5, 5670724), (10, 2835362), (17, 1667860), (20, 1417681), (34, 833930), (68, 416965), (85, 333572), (89, 318580), (170, 166786), (178, 159290), (340, 83393), (356, 79645), (445, 63716), (890, 31858), (937, 30260), (1513, 18740), (1780, 15929), (1874, 15130), (3026, 9370), (3748, 7565), (4685, 6052)]