321016520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31721}}^1$

素因数の和:31766

約数の個数: 64

約数和(自身を含む): 822234240

約数和(自身を除く): 501217720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 2024, 2530, 5060, 10120, 31721, 63442, 126884, 158605, 253768, 317210, 348931, 634420, 697862, 729583, 1268840, 1395724, 1459166, 1744655, 2791448, 2918332, 3489310, 3647915, 5836664, 6978620, 7295830, 8025413, 13957240, 14591660, 16050826, 29183320, 32101652, 40127065, 64203304, 80254130, 160508260, 321016520]

約数ペア:

[(1, 321016520), (2, 160508260), (4, 80254130), (5, 64203304), (8, 40127065), (10, 32101652), (11, 29183320), (20, 16050826), (22, 14591660), (23, 13957240), (40, 8025413), (44, 7295830), (46, 6978620), (55, 5836664), (88, 3647915), (92, 3489310), (110, 2918332), (115, 2791448), (184, 1744655), (220, 1459166), (230, 1395724), (253, 1268840), (440, 729583), (460, 697862), (506, 634420), (920, 348931), (1012, 317210), (1265, 253768), (2024, 158605), (2530, 126884), (5060, 63442), (10120, 31721)]