19843619536

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{367}}^1\times {\mathrm{1361}}^1$

素因数の和:1940

約数の個数: 80

約数和(自身を含む): 41765326848

約数和(自身を除く): 21921707312

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 191, 208, 367, 382, 734, 764, 1361, 1468, 1528, 2483, 2722, 2936, 3056, 4771, 4966, 5444, 5872, 9542, 9932, 10888, 17693, 19084, 19864, 21776, 35386, 38168, 39728, 70097, 70772, 76336, 140194, 141544, 259951, 280388, 283088, 499487, 519902, 560776, 911261, 998974, 1039804, 1121552, 1822522, 1997948, 2079608, 3379363, 3645044, 3995896, 4159216, 6493331, 6758726, 7290088, 7991792, 12986662, 13517452, 14580176, 25973324, 27034904, 51946648, 54069808, 95402017, 103893296, 190804034, 381608068, 763216136, 1240226221, 1526432272, 2480452442, 4960904884, 9921809768, 19843619536]

約数ペア:

[(1, 19843619536), (2, 9921809768), (4, 4960904884), (8, 2480452442), (13, 1526432272), (16, 1240226221), (26, 763216136), (52, 381608068), (104, 190804034), (191, 103893296), (208, 95402017), (367, 54069808), (382, 51946648), (734, 27034904), (764, 25973324), (1361, 14580176), (1468, 13517452), (1528, 12986662), (2483, 7991792), (2722, 7290088), (2936, 6758726), (3056, 6493331), (4771, 4159216), (4966, 3995896), (5444, 3645044), (5872, 3379363), (9542, 2079608), (9932, 1997948), (10888, 1822522), (17693, 1121552), (19084, 1039804), (19864, 998974), (21776, 911261), (35386, 560776), (38168, 519902), (39728, 499487), (70097, 283088), (70772, 280388), (76336, 259951), (140194, 141544)]