61978140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{7027}}^1$

素因数の和:7056

約数の個数: 108

約数和(自身を含む): 218725416

約数和(自身を除く): 156747276

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 7027, 8820, 14054, 21081, 28108, 35135, 42162, 49189, 63243, 70270, 84324, 98378, 105405, 126486, 140540, 147567, 196756, 210810, 245945, 252972, 295134, 316215, 344323, 421620, 442701, 491890, 590268, 632430, 688646, 737835, 885402, 983780, 1032969, 1264860, 1377292, 1475670, 1721615, 1770804, 2065938, 2213505, 2951340, 3098907, 3443230, 4131876, 4427010, 5164845, 6197814, 6886460, 8854020, 10329690, 12395628, 15494535, 20659380, 30989070, 61978140]

約数ペア:

[(1, 61978140), (2, 30989070), (3, 20659380), (4, 15494535), (5, 12395628), (6, 10329690), (7, 8854020), (9, 6886460), (10, 6197814), (12, 5164845), (14, 4427010), (15, 4131876), (18, 3443230), (20, 3098907), (21, 2951340), (28, 2213505), (30, 2065938), (35, 1770804), (36, 1721615), (42, 1475670), (45, 1377292), (49, 1264860), (60, 1032969), (63, 983780), (70, 885402), (84, 737835), (90, 688646), (98, 632430), (105, 590268), (126, 491890), (140, 442701), (147, 421620), (180, 344323), (196, 316215), (210, 295134), (245, 252972), (252, 245945), (294, 210810), (315, 196756), (420, 147567), (441, 140540), (490, 126486), (588, 105405), (630, 98378), (735, 84324), (882, 70270), (980, 63243), (1260, 49189), (1470, 42162), (1764, 35135), (2205, 28108), (2940, 21081), (4410, 14054), (7027, 8820)]