18965567872

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{1097}}^1\times {\mathrm{4357}}^1$

素因数の和:5499

約数の個数: 64

約数和(自身を含む): 39046285440

約数和(自身を除く): 20080717568

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1097, 1984, 2194, 3968, 4357, 4388, 8714, 8776, 17428, 17552, 34007, 34856, 35104, 68014, 69712, 70208, 135067, 136028, 139424, 140416, 270134, 272056, 278848, 540268, 544112, 557696, 1080536, 1088224, 2161072, 2176448, 4322144, 4352896, 4779629, 8644288, 9559258, 17288576, 19118516, 38237032, 76474064, 148168499, 152948128, 296336998, 305896256, 592673996, 611792512, 1185347992, 2370695984, 4741391968, 9482783936, 18965567872]

約数ペア:

[(1, 18965567872), (2, 9482783936), (4, 4741391968), (8, 2370695984), (16, 1185347992), (31, 611792512), (32, 592673996), (62, 305896256), (64, 296336998), (124, 152948128), (128, 148168499), (248, 76474064), (496, 38237032), (992, 19118516), (1097, 17288576), (1984, 9559258), (2194, 8644288), (3968, 4779629), (4357, 4352896), (4388, 4322144), (8714, 2176448), (8776, 2161072), (17428, 1088224), (17552, 1080536), (34007, 557696), (34856, 544112), (35104, 540268), (68014, 278848), (69712, 272056), (70208, 270134), (135067, 140416), (136028, 139424)]