27978808

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{661}}^1$

素因数の和:728

約数の個数: 64

約数和(自身を含む): 63393120

約数和(自身を除く): 35414312

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 37, 44, 52, 74, 88, 104, 143, 148, 286, 296, 407, 481, 572, 661, 814, 962, 1144, 1322, 1628, 1924, 2644, 3256, 3848, 5288, 5291, 7271, 8593, 10582, 14542, 17186, 21164, 24457, 29084, 34372, 42328, 48914, 58168, 68744, 94523, 97828, 189046, 195656, 269027, 317941, 378092, 538054, 635882, 756184, 1076108, 1271764, 2152216, 2543528, 3497351, 6994702, 13989404, 27978808]

約数ペア:

[(1, 27978808), (2, 13989404), (4, 6994702), (8, 3497351), (11, 2543528), (13, 2152216), (22, 1271764), (26, 1076108), (37, 756184), (44, 635882), (52, 538054), (74, 378092), (88, 317941), (104, 269027), (143, 195656), (148, 189046), (286, 97828), (296, 94523), (407, 68744), (481, 58168), (572, 48914), (661, 42328), (814, 34372), (962, 29084), (1144, 24457), (1322, 21164), (1628, 17186), (1924, 14542), (2644, 10582), (3256, 8593), (3848, 7271), (5288, 5291)]