261641844

素因数分解:

$2^2\times 3^2\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{643}}^1$

素因数の和:869

約数の個数: 72

約数和(自身を含む): 675118080

約数和(自身を除く): 413476236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 89, 127, 178, 254, 267, 356, 381, 508, 534, 643, 762, 801, 1068, 1143, 1286, 1524, 1602, 1929, 2286, 2572, 3204, 3858, 4572, 5787, 7716, 11303, 11574, 22606, 23148, 33909, 45212, 57227, 67818, 81661, 101727, 114454, 135636, 163322, 171681, 203454, 228908, 244983, 326644, 343362, 406908, 489966, 515043, 686724, 734949, 979932, 1030086, 1469898, 2060172, 2939796, 7267829, 14535658, 21803487, 29071316, 43606974, 65410461, 87213948, 130820922, 261641844]

約数ペア:

[(1, 261641844), (2, 130820922), (3, 87213948), (4, 65410461), (6, 43606974), (9, 29071316), (12, 21803487), (18, 14535658), (36, 7267829), (89, 2939796), (127, 2060172), (178, 1469898), (254, 1030086), (267, 979932), (356, 734949), (381, 686724), (508, 515043), (534, 489966), (643, 406908), (762, 343362), (801, 326644), (1068, 244983), (1143, 228908), (1286, 203454), (1524, 171681), (1602, 163322), (1929, 135636), (2286, 114454), (2572, 101727), (3204, 81661), (3858, 67818), (4572, 57227), (5787, 45212), (7716, 33909), (11303, 23148), (11574, 22606)]