256481640

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{26387}}^1$

素因数の和:26413

約数の個数: 96

約数和(自身を含む): 864470880

約数和(自身を除く): 607989240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 810, 972, 1080, 1215, 1620, 1944, 2430, 3240, 4860, 9720, 26387, 52774, 79161, 105548, 131935, 158322, 211096, 237483, 263870, 316644, 395805, 474966, 527740, 633288, 712449, 791610, 949932, 1055480, 1187415, 1424898, 1583220, 1899864, 2137347, 2374830, 2849796, 3166440, 3562245, 4274694, 4749660, 5699592, 6412041, 7124490, 8549388, 9499320, 10686735, 12824082, 14248980, 17098776, 21373470, 25648164, 28497960, 32060205, 42746940, 51296328, 64120410, 85493880, 128240820, 256481640]

約数ペア:

[(1, 256481640), (2, 128240820), (3, 85493880), (4, 64120410), (5, 51296328), (6, 42746940), (8, 32060205), (9, 28497960), (10, 25648164), (12, 21373470), (15, 17098776), (18, 14248980), (20, 12824082), (24, 10686735), (27, 9499320), (30, 8549388), (36, 7124490), (40, 6412041), (45, 5699592), (54, 4749660), (60, 4274694), (72, 3562245), (81, 3166440), (90, 2849796), (108, 2374830), (120, 2137347), (135, 1899864), (162, 1583220), (180, 1424898), (216, 1187415), (243, 1055480), (270, 949932), (324, 791610), (360, 712449), (405, 633288), (486, 527740), (540, 474966), (648, 395805), (810, 316644), (972, 263870), (1080, 237483), (1215, 211096), (1620, 158322), (1944, 131935), (2430, 105548), (3240, 79161), (4860, 52774), (9720, 26387)]