1386320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:100

約数の個数: 80

約数和(自身を含む): 3666432

約数和(自身を除く): 2280112

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 43, 52, 62, 65, 80, 86, 104, 124, 130, 155, 172, 208, 215, 248, 260, 310, 344, 403, 430, 496, 520, 559, 620, 688, 806, 860, 1040, 1118, 1240, 1333, 1612, 1720, 2015, 2236, 2480, 2666, 2795, 3224, 3440, 4030, 4472, 5332, 5590, 6448, 6665, 8060, 8944, 10664, 11180, 13330, 16120, 17329, 21328, 22360, 26660, 32240, 34658, 44720, 53320, 69316, 86645, 106640, 138632, 173290, 277264, 346580, 693160, 1386320]

約数ペア:

[(1, 1386320), (2, 693160), (4, 346580), (5, 277264), (8, 173290), (10, 138632), (13, 106640), (16, 86645), (20, 69316), (26, 53320), (31, 44720), (40, 34658), (43, 32240), (52, 26660), (62, 22360), (65, 21328), (80, 17329), (86, 16120), (104, 13330), (124, 11180), (130, 10664), (155, 8944), (172, 8060), (208, 6665), (215, 6448), (248, 5590), (260, 5332), (310, 4472), (344, 4030), (403, 3440), (430, 3224), (496, 2795), (520, 2666), (559, 2480), (620, 2236), (688, 2015), (806, 1720), (860, 1612), (1040, 1333), (1118, 1240)]