16780920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1$

素因数の和:405

約数の個数: 128

約数和(自身を含む): 56125440

約数和(自身を除く): 39344520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 78, 93, 104, 120, 124, 130, 155, 156, 186, 195, 248, 260, 310, 312, 347, 372, 390, 403, 465, 520, 620, 694, 744, 780, 806, 930, 1041, 1209, 1240, 1388, 1560, 1612, 1735, 1860, 2015, 2082, 2418, 2776, 3224, 3470, 3720, 4030, 4164, 4511, 4836, 5205, 6045, 6940, 8060, 8328, 9022, 9672, 10410, 10757, 12090, 13533, 13880, 16120, 18044, 20820, 21514, 22555, 24180, 27066, 32271, 36088, 41640, 43028, 45110, 48360, 53785, 54132, 64542, 67665, 86056, 90220, 107570, 108264, 129084, 135330, 139841, 161355, 180440, 215140, 258168, 270660, 279682, 322710, 419523, 430280, 541320, 559364, 645420, 699205, 839046, 1118728, 1290840, 1398410, 1678092, 2097615, 2796820, 3356184, 4195230, 5593640, 8390460, 16780920]

約数ペア:

[(1, 16780920), (2, 8390460), (3, 5593640), (4, 4195230), (5, 3356184), (6, 2796820), (8, 2097615), (10, 1678092), (12, 1398410), (13, 1290840), (15, 1118728), (20, 839046), (24, 699205), (26, 645420), (30, 559364), (31, 541320), (39, 430280), (40, 419523), (52, 322710), (60, 279682), (62, 270660), (65, 258168), (78, 215140), (93, 180440), (104, 161355), (120, 139841), (124, 135330), (130, 129084), (155, 108264), (156, 107570), (186, 90220), (195, 86056), (248, 67665), (260, 64542), (310, 54132), (312, 53785), (347, 48360), (372, 45110), (390, 43028), (403, 41640), (465, 36088), (520, 32271), (620, 27066), (694, 24180), (744, 22555), (780, 21514), (806, 20820), (930, 18044), (1041, 16120), (1209, 13880), (1240, 13533), (1388, 12090), (1560, 10757), (1612, 10410), (1735, 9672), (1860, 9022), (2015, 8328), (2082, 8060), (2418, 6940), (2776, 6045), (3224, 5205), (3470, 4836), (3720, 4511), (4030, 4164)]