28419560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:139

約数の個数: 128

約数和(自身を含む): 74511360

約数和(自身を除く): 46091800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 41, 43, 52, 62, 65, 82, 86, 104, 124, 130, 155, 164, 172, 205, 215, 248, 260, 310, 328, 344, 403, 410, 430, 520, 533, 559, 620, 806, 820, 860, 1066, 1118, 1240, 1271, 1333, 1612, 1640, 1720, 1763, 2015, 2132, 2236, 2542, 2665, 2666, 2795, 3224, 3526, 4030, 4264, 4472, 5084, 5330, 5332, 5590, 6355, 6665, 7052, 8060, 8815, 10168, 10660, 10664, 11180, 12710, 13330, 14104, 16120, 16523, 17329, 17630, 21320, 22360, 22919, 25420, 26660, 33046, 34658, 35260, 45838, 50840, 53320, 54653, 66092, 69316, 70520, 82615, 86645, 91676, 109306, 114595, 132184, 138632, 165230, 173290, 183352, 218612, 229190, 273265, 330460, 346580, 437224, 458380, 546530, 660920, 693160, 710489, 916760, 1093060, 1420978, 2186120, 2841956, 3552445, 5683912, 7104890, 14209780, 28419560]

約数ペア:

[(1, 28419560), (2, 14209780), (4, 7104890), (5, 5683912), (8, 3552445), (10, 2841956), (13, 2186120), (20, 1420978), (26, 1093060), (31, 916760), (40, 710489), (41, 693160), (43, 660920), (52, 546530), (62, 458380), (65, 437224), (82, 346580), (86, 330460), (104, 273265), (124, 229190), (130, 218612), (155, 183352), (164, 173290), (172, 165230), (205, 138632), (215, 132184), (248, 114595), (260, 109306), (310, 91676), (328, 86645), (344, 82615), (403, 70520), (410, 69316), (430, 66092), (520, 54653), (533, 53320), (559, 50840), (620, 45838), (806, 35260), (820, 34658), (860, 33046), (1066, 26660), (1118, 25420), (1240, 22919), (1271, 22360), (1333, 21320), (1612, 17630), (1640, 17329), (1720, 16523), (1763, 16120), (2015, 14104), (2132, 13330), (2236, 12710), (2542, 11180), (2665, 10664), (2666, 10660), (2795, 10168), (3224, 8815), (3526, 8060), (4030, 7052), (4264, 6665), (4472, 6355), (5084, 5590), (5330, 5332)]