64993940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{107}}^1\times {\mathrm{251}}^1$

素因数の和:389

約数の個数: 72

約数和(自身を含む): 152028576

約数和(自身を除く): 87034636

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 107, 110, 121, 214, 220, 242, 251, 428, 484, 502, 535, 605, 1004, 1070, 1177, 1210, 1255, 2140, 2354, 2420, 2510, 2761, 4708, 5020, 5522, 5885, 11044, 11770, 12947, 13805, 23540, 25894, 26857, 27610, 30371, 51788, 53714, 55220, 60742, 64735, 107428, 121484, 129470, 134285, 151855, 258940, 268570, 295427, 303710, 537140, 590854, 607420, 1181708, 1477135, 2954270, 3249697, 5908540, 6499394, 12998788, 16248485, 32496970, 64993940]

約数ペア:

[(1, 64993940), (2, 32496970), (4, 16248485), (5, 12998788), (10, 6499394), (11, 5908540), (20, 3249697), (22, 2954270), (44, 1477135), (55, 1181708), (107, 607420), (110, 590854), (121, 537140), (214, 303710), (220, 295427), (242, 268570), (251, 258940), (428, 151855), (484, 134285), (502, 129470), (535, 121484), (605, 107428), (1004, 64735), (1070, 60742), (1177, 55220), (1210, 53714), (1255, 51788), (2140, 30371), (2354, 27610), (2420, 26857), (2510, 25894), (2761, 23540), (4708, 13805), (5020, 12947), (5522, 11770), (5885, 11044)]