19118320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{593}}^1$

素因数の和:650

約数の個数: 80

約数和(自身を含む): 49496832

約数和(自身を除く): 30378512

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 593, 620, 806, 1040, 1186, 1240, 1612, 2015, 2372, 2480, 2965, 3224, 4030, 4744, 5930, 6448, 7709, 8060, 9488, 11860, 15418, 16120, 18383, 23720, 30836, 32240, 36766, 38545, 47440, 61672, 73532, 77090, 91915, 123344, 147064, 154180, 183830, 238979, 294128, 308360, 367660, 477958, 616720, 735320, 955916, 1194895, 1470640, 1911832, 2389790, 3823664, 4779580, 9559160, 19118320]

約数ペア:

[(1, 19118320), (2, 9559160), (4, 4779580), (5, 3823664), (8, 2389790), (10, 1911832), (13, 1470640), (16, 1194895), (20, 955916), (26, 735320), (31, 616720), (40, 477958), (52, 367660), (62, 308360), (65, 294128), (80, 238979), (104, 183830), (124, 154180), (130, 147064), (155, 123344), (208, 91915), (248, 77090), (260, 73532), (310, 61672), (403, 47440), (496, 38545), (520, 36766), (593, 32240), (620, 30836), (806, 23720), (1040, 18383), (1186, 16120), (1240, 15418), (1612, 11860), (2015, 9488), (2372, 8060), (2480, 7709), (2965, 6448), (3224, 5930), (4030, 4744)]