81477720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2543}}^1$

素因数の和:2649

約数の個数: 96

約数和(自身を含む): 267883200

約数和(自身を除く): 186405480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 89, 90, 120, 178, 180, 267, 356, 360, 445, 534, 712, 801, 890, 1068, 1335, 1602, 1780, 2136, 2543, 2670, 3204, 3560, 4005, 5086, 5340, 6408, 7629, 8010, 10172, 10680, 12715, 15258, 16020, 20344, 22887, 25430, 30516, 32040, 38145, 45774, 50860, 61032, 76290, 91548, 101720, 114435, 152580, 183096, 226327, 228870, 305160, 452654, 457740, 678981, 905308, 915480, 1131635, 1357962, 1810616, 2036943, 2263270, 2715924, 3394905, 4073886, 4526540, 5431848, 6789810, 8147772, 9053080, 10184715, 13579620, 16295544, 20369430, 27159240, 40738860, 81477720]

約数ペア:

[(1, 81477720), (2, 40738860), (3, 27159240), (4, 20369430), (5, 16295544), (6, 13579620), (8, 10184715), (9, 9053080), (10, 8147772), (12, 6789810), (15, 5431848), (18, 4526540), (20, 4073886), (24, 3394905), (30, 2715924), (36, 2263270), (40, 2036943), (45, 1810616), (60, 1357962), (72, 1131635), (89, 915480), (90, 905308), (120, 678981), (178, 457740), (180, 452654), (267, 305160), (356, 228870), (360, 226327), (445, 183096), (534, 152580), (712, 114435), (801, 101720), (890, 91548), (1068, 76290), (1335, 61032), (1602, 50860), (1780, 45774), (2136, 38145), (2543, 32040), (2670, 30516), (3204, 25430), (3560, 22887), (4005, 20344), (5086, 16020), (5340, 15258), (6408, 12715), (7629, 10680), (8010, 10172)]