18666752

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 41207040

約数和(自身を除く): 22540288

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 71, 79, 104, 128, 142, 158, 208, 256, 284, 316, 416, 568, 632, 832, 923, 1027, 1136, 1264, 1664, 1846, 2054, 2272, 2528, 3328, 3692, 4108, 4544, 5056, 5609, 7384, 8216, 9088, 10112, 11218, 14768, 16432, 18176, 20224, 22436, 29536, 32864, 44872, 59072, 65728, 72917, 89744, 118144, 131456, 145834, 179488, 236288, 262912, 291668, 358976, 583336, 717952, 1166672, 1435904, 2333344, 4666688, 9333376, 18666752]

約数ペア:

[(1, 18666752), (2, 9333376), (4, 4666688), (8, 2333344), (13, 1435904), (16, 1166672), (26, 717952), (32, 583336), (52, 358976), (64, 291668), (71, 262912), (79, 236288), (104, 179488), (128, 145834), (142, 131456), (158, 118144), (208, 89744), (256, 72917), (284, 65728), (316, 59072), (416, 44872), (568, 32864), (632, 29536), (832, 22436), (923, 20224), (1027, 18176), (1136, 16432), (1264, 14768), (1664, 11218), (1846, 10112), (2054, 9088), (2272, 8216), (2528, 7384), (3328, 5609), (3692, 5056), (4108, 4544)]