99684980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{809}}^1$

素因数の和:980

約数の個数: 48

約数和(自身を含む): 215142480

約数和(自身を除く): 115457500

約数列:

[1, 2, 4, 5, 10, 20, 61, 101, 122, 202, 244, 305, 404, 505, 610, 809, 1010, 1220, 1618, 2020, 3236, 4045, 6161, 8090, 12322, 16180, 24644, 30805, 49349, 61610, 81709, 98698, 123220, 163418, 197396, 246745, 326836, 408545, 493490, 817090, 986980, 1634180, 4984249, 9968498, 19936996, 24921245, 49842490, 99684980]

約数ペア:

[(1, 99684980), (2, 49842490), (4, 24921245), (5, 19936996), (10, 9968498), (20, 4984249), (61, 1634180), (101, 986980), (122, 817090), (202, 493490), (244, 408545), (305, 326836), (404, 246745), (505, 197396), (610, 163418), (809, 123220), (1010, 98698), (1220, 81709), (1618, 61610), (2020, 49349), (3236, 30805), (4045, 24644), (6161, 16180), (8090, 12322)]