98810020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 220708152

約数和(自身を除く): 121898132

約数列:

[1, 2, 4, 5, 10, 20, 31, 53, 62, 97, 106, 124, 155, 194, 212, 265, 310, 388, 485, 530, 620, 961, 970, 1060, 1643, 1922, 1940, 3007, 3286, 3844, 4805, 5141, 6014, 6572, 8215, 9610, 10282, 12028, 15035, 16430, 19220, 20564, 25705, 30070, 32860, 50933, 51410, 60140, 93217, 101866, 102820, 159371, 186434, 203732, 254665, 318742, 372868, 466085, 509330, 637484, 796855, 932170, 1018660, 1593710, 1864340, 3187420, 4940501, 9881002, 19762004, 24702505, 49405010, 98810020]

約数ペア:

[(1, 98810020), (2, 49405010), (4, 24702505), (5, 19762004), (10, 9881002), (20, 4940501), (31, 3187420), (53, 1864340), (62, 1593710), (97, 1018660), (106, 932170), (124, 796855), (155, 637484), (194, 509330), (212, 466085), (265, 372868), (310, 318742), (388, 254665), (485, 203732), (530, 186434), (620, 159371), (961, 102820), (970, 101866), (1060, 93217), (1643, 60140), (1922, 51410), (1940, 50933), (3007, 32860), (3286, 30070), (3844, 25705), (4805, 20564), (5141, 19220), (6014, 16430), (6572, 15035), (8215, 12028), (9610, 10282)]