19910251952

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{463}}^1\times {\mathrm{479}}^1$

素因数の和:1162

約数の個数: 80

約数和(自身を含む): 40210759680

約数和(自身を除く): 20300507728

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 181, 248, 362, 463, 479, 496, 724, 926, 958, 1448, 1852, 1916, 2896, 3704, 3832, 5611, 7408, 7664, 11222, 14353, 14849, 22444, 28706, 29698, 44888, 57412, 59396, 83803, 86699, 89776, 114824, 118792, 167606, 173398, 221777, 229648, 237584, 335212, 346796, 443554, 670424, 693592, 887108, 1340848, 1387184, 1774216, 2597893, 2687669, 3548432, 5195786, 5375338, 6875087, 10391572, 10750676, 13750174, 20783144, 21501352, 27500348, 40141637, 41566288, 43002704, 55000696, 80283274, 110001392, 160566548, 321133096, 642266192, 1244390747, 2488781494, 4977562988, 9955125976, 19910251952]

約数ペア:

[(1, 19910251952), (2, 9955125976), (4, 4977562988), (8, 2488781494), (16, 1244390747), (31, 642266192), (62, 321133096), (124, 160566548), (181, 110001392), (248, 80283274), (362, 55000696), (463, 43002704), (479, 41566288), (496, 40141637), (724, 27500348), (926, 21501352), (958, 20783144), (1448, 13750174), (1852, 10750676), (1916, 10391572), (2896, 6875087), (3704, 5375338), (3832, 5195786), (5611, 3548432), (7408, 2687669), (7664, 2597893), (11222, 1774216), (14353, 1387184), (14849, 1340848), (22444, 887108), (28706, 693592), (29698, 670424), (44888, 443554), (57412, 346796), (59396, 335212), (83803, 237584), (86699, 229648), (89776, 221777), (114824, 173398), (118792, 167606)]