188435980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1\times {\mathrm{619}}^1$

素因数の和:1150

約数の個数: 48

約数和(自身を含む): 409973760

約数和(自身を除く): 221537780

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 491, 619, 620, 982, 1238, 1964, 2455, 2476, 3095, 4910, 6190, 9820, 12380, 15221, 19189, 30442, 38378, 60884, 76105, 76756, 95945, 152210, 191890, 303929, 304420, 383780, 607858, 1215716, 1519645, 3039290, 6078580, 9421799, 18843598, 37687196, 47108995, 94217990, 188435980]

約数ペア:

[(1, 188435980), (2, 94217990), (4, 47108995), (5, 37687196), (10, 18843598), (20, 9421799), (31, 6078580), (62, 3039290), (124, 1519645), (155, 1215716), (310, 607858), (491, 383780), (619, 304420), (620, 303929), (982, 191890), (1238, 152210), (1964, 95945), (2455, 76756), (2476, 76105), (3095, 60884), (4910, 38378), (6190, 30442), (9820, 19189), (12380, 15221)]