72078820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:253

約数の個数: 96

約数和(自身を含む): 173238912

約数和(自身を除く): 101160092

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 61, 82, 110, 122, 131, 164, 205, 220, 244, 262, 305, 410, 451, 524, 610, 655, 671, 820, 902, 1220, 1310, 1342, 1441, 1804, 2255, 2501, 2620, 2684, 2882, 3355, 4510, 5002, 5371, 5764, 6710, 7205, 7991, 9020, 10004, 10742, 12505, 13420, 14410, 15982, 21484, 25010, 26855, 27511, 28820, 31964, 39955, 50020, 53710, 55022, 59081, 79910, 87901, 107420, 110044, 118162, 137555, 159820, 175802, 236324, 275110, 295405, 327631, 351604, 439505, 550220, 590810, 655262, 879010, 1181620, 1310524, 1638155, 1758020, 3276310, 3603941, 6552620, 7207882, 14415764, 18019705, 36039410, 72078820]

約数ペア:

[(1, 72078820), (2, 36039410), (4, 18019705), (5, 14415764), (10, 7207882), (11, 6552620), (20, 3603941), (22, 3276310), (41, 1758020), (44, 1638155), (55, 1310524), (61, 1181620), (82, 879010), (110, 655262), (122, 590810), (131, 550220), (164, 439505), (205, 351604), (220, 327631), (244, 295405), (262, 275110), (305, 236324), (410, 175802), (451, 159820), (524, 137555), (610, 118162), (655, 110044), (671, 107420), (820, 87901), (902, 79910), (1220, 59081), (1310, 55022), (1342, 53710), (1441, 50020), (1804, 39955), (2255, 31964), (2501, 28820), (2620, 27511), (2684, 26855), (2882, 25010), (3355, 21484), (4510, 15982), (5002, 14410), (5371, 13420), (5764, 12505), (6710, 10742), (7205, 10004), (7991, 9020)]