198013120

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{19961}}^1$

素因数の和:20009

約数の個数: 56

約数和(自身を含む): 486753408

約数和(自身を除く): 288740288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 19961, 39922, 79844, 99805, 159688, 199610, 319376, 399220, 618791, 638752, 798440, 1237582, 1277504, 1596880, 2475164, 3093955, 3193760, 4950328, 6187910, 6387520, 9900656, 12375820, 19801312, 24751640, 39602624, 49503280, 99006560, 198013120]

約数ペア:

[(1, 198013120), (2, 99006560), (4, 49503280), (5, 39602624), (8, 24751640), (10, 19801312), (16, 12375820), (20, 9900656), (31, 6387520), (32, 6187910), (40, 4950328), (62, 3193760), (64, 3093955), (80, 2475164), (124, 1596880), (155, 1277504), (160, 1237582), (248, 798440), (310, 638752), (320, 618791), (496, 399220), (620, 319376), (992, 199610), (1240, 159688), (1984, 99805), (2480, 79844), (4960, 39922), (9920, 19961)]