1581567220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{571}}^1$

素因数の和:833

約数の個数: 96

約数和(自身を含む): 3615131520

約数和(自身を除く): 2033564300

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 197, 370, 380, 394, 571, 703, 740, 788, 985, 1142, 1406, 1970, 2284, 2812, 2855, 3515, 3743, 3940, 5710, 7030, 7289, 7486, 10849, 11420, 14060, 14578, 14972, 18715, 21127, 21698, 29156, 36445, 37430, 42254, 43396, 54245, 72890, 74860, 84508, 105635, 108490, 112487, 138491, 145780, 211270, 216980, 224974, 276982, 401413, 422540, 449948, 553964, 562435, 692455, 802826, 1124870, 1384910, 1605652, 2007065, 2137253, 2249740, 2769820, 4014130, 4162019, 4274506, 8028260, 8324038, 8549012, 10686265, 16648076, 20810095, 21372530, 41620190, 42745060, 79078361, 83240380, 158156722, 316313444, 395391805, 790783610, 1581567220]

約数ペア:

[(1, 1581567220), (2, 790783610), (4, 395391805), (5, 316313444), (10, 158156722), (19, 83240380), (20, 79078361), (37, 42745060), (38, 41620190), (74, 21372530), (76, 20810095), (95, 16648076), (148, 10686265), (185, 8549012), (190, 8324038), (197, 8028260), (370, 4274506), (380, 4162019), (394, 4014130), (571, 2769820), (703, 2249740), (740, 2137253), (788, 2007065), (985, 1605652), (1142, 1384910), (1406, 1124870), (1970, 802826), (2284, 692455), (2812, 562435), (2855, 553964), (3515, 449948), (3743, 422540), (3940, 401413), (5710, 276982), (7030, 224974), (7289, 216980), (7486, 211270), (10849, 145780), (11420, 138491), (14060, 112487), (14578, 108490), (14972, 105635), (18715, 84508), (21127, 74860), (21698, 72890), (29156, 54245), (36445, 43396), (37430, 42254)]