221597920

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1039}}^1$

素因数の和:1128

約数の個数: 96

約数和(自身を含む): 553512960

約数和(自身を除く): 331915040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 43, 62, 80, 86, 124, 155, 160, 172, 215, 248, 310, 344, 430, 496, 620, 688, 860, 992, 1039, 1240, 1333, 1376, 1720, 2078, 2480, 2666, 3440, 4156, 4960, 5195, 5332, 6665, 6880, 8312, 10390, 10664, 13330, 16624, 20780, 21328, 26660, 32209, 33248, 41560, 42656, 44677, 53320, 64418, 83120, 89354, 106640, 128836, 161045, 166240, 178708, 213280, 223385, 257672, 322090, 357416, 446770, 515344, 644180, 714832, 893540, 1030688, 1288360, 1384987, 1429664, 1787080, 2576720, 2769974, 3574160, 5153440, 5539948, 6924935, 7148320, 11079896, 13849870, 22159792, 27699740, 44319584, 55399480, 110798960, 221597920]

約数ペア:

[(1, 221597920), (2, 110798960), (4, 55399480), (5, 44319584), (8, 27699740), (10, 22159792), (16, 13849870), (20, 11079896), (31, 7148320), (32, 6924935), (40, 5539948), (43, 5153440), (62, 3574160), (80, 2769974), (86, 2576720), (124, 1787080), (155, 1429664), (160, 1384987), (172, 1288360), (215, 1030688), (248, 893540), (310, 714832), (344, 644180), (430, 515344), (496, 446770), (620, 357416), (688, 322090), (860, 257672), (992, 223385), (1039, 213280), (1240, 178708), (1333, 166240), (1376, 161045), (1720, 128836), (2078, 106640), (2480, 89354), (2666, 83120), (3440, 64418), (4156, 53320), (4960, 44677), (5195, 42656), (5332, 41560), (6665, 33248), (6880, 32209), (8312, 26660), (10390, 21328), (10664, 20780), (13330, 16624)]