81266040

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^2$

素因数の和:254

約数の個数: 144

約数和(自身を含む): 280589400

約数和(自身を除く): 199323360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 72, 76, 90, 95, 109, 114, 120, 152, 171, 180, 190, 218, 228, 285, 327, 342, 360, 380, 436, 456, 545, 570, 654, 684, 760, 855, 872, 981, 1090, 1140, 1308, 1368, 1635, 1710, 1962, 2071, 2180, 2280, 2616, 3270, 3420, 3924, 4142, 4360, 4905, 6213, 6540, 6840, 7848, 8284, 9810, 10355, 11881, 12426, 13080, 16568, 18639, 19620, 20710, 23762, 24852, 31065, 35643, 37278, 39240, 41420, 47524, 49704, 59405, 62130, 71286, 74556, 82840, 93195, 95048, 106929, 118810, 124260, 142572, 149112, 178215, 186390, 213858, 225739, 237620, 248520, 285144, 356430, 372780, 427716, 451478, 475240, 534645, 677217, 712860, 745560, 855432, 902956, 1069290, 1128695, 1354434, 1425720, 1805912, 2031651, 2138580, 2257390, 2708868, 3386085, 4063302, 4277160, 4514780, 5417736, 6772170, 8126604, 9029560, 10158255, 13544340, 16253208, 20316510, 27088680, 40633020, 81266040]

約数ペア:

[(1, 81266040), (2, 40633020), (3, 27088680), (4, 20316510), (5, 16253208), (6, 13544340), (8, 10158255), (9, 9029560), (10, 8126604), (12, 6772170), (15, 5417736), (18, 4514780), (19, 4277160), (20, 4063302), (24, 3386085), (30, 2708868), (36, 2257390), (38, 2138580), (40, 2031651), (45, 1805912), (57, 1425720), (60, 1354434), (72, 1128695), (76, 1069290), (90, 902956), (95, 855432), (109, 745560), (114, 712860), (120, 677217), (152, 534645), (171, 475240), (180, 451478), (190, 427716), (218, 372780), (228, 356430), (285, 285144), (327, 248520), (342, 237620), (360, 225739), (380, 213858), (436, 186390), (456, 178215), (545, 149112), (570, 142572), (654, 124260), (684, 118810), (760, 106929), (855, 95048), (872, 93195), (981, 82840), (1090, 74556), (1140, 71286), (1308, 62130), (1368, 59405), (1635, 49704), (1710, 47524), (1962, 41420), (2071, 39240), (2180, 37278), (2280, 35643), (2616, 31065), (3270, 24852), (3420, 23762), (3924, 20710), (4142, 19620), (4360, 18639), (4905, 16568), (6213, 13080), (6540, 12426), (6840, 11881), (7848, 10355), (8284, 9810)]