18128996908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{257}}^1\times {\mathrm{4441}}^1$

素因数の和:4751

約数の個数: 72

約数和(自身を含む): 36677736144

約数和(自身を除く): 18548739236

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 257, 361, 418, 514, 722, 836, 1028, 1444, 2827, 3971, 4441, 4883, 5654, 7942, 8882, 9766, 11308, 15884, 17764, 19532, 48851, 53713, 84379, 92777, 97702, 107426, 168758, 185554, 195404, 214852, 337516, 371108, 928169, 1020547, 1141337, 1603201, 1856338, 2041094, 2282674, 3206402, 3712676, 4082188, 4565348, 6412804, 12554707, 17635211, 21685403, 25109414, 35270422, 43370806, 50218828, 70540844, 86741612, 238539433, 412022657, 477078866, 824045314, 954157732, 1648090628, 4532249227, 9064498454, 18128996908]

約数ペア:

[(1, 18128996908), (2, 9064498454), (4, 4532249227), (11, 1648090628), (19, 954157732), (22, 824045314), (38, 477078866), (44, 412022657), (76, 238539433), (209, 86741612), (257, 70540844), (361, 50218828), (418, 43370806), (514, 35270422), (722, 25109414), (836, 21685403), (1028, 17635211), (1444, 12554707), (2827, 6412804), (3971, 4565348), (4441, 4082188), (4883, 3712676), (5654, 3206402), (7942, 2282674), (8882, 2041094), (9766, 1856338), (11308, 1603201), (15884, 1141337), (17764, 1020547), (19532, 928169), (48851, 371108), (53713, 337516), (84379, 214852), (92777, 195404), (97702, 185554), (107426, 168758)]