55158640

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:290

約数の個数: 80

約数和(自身を含む): 132848640

約数和(自身を除く): 77690000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 89, 122, 127, 178, 244, 254, 305, 356, 445, 488, 508, 610, 635, 712, 890, 976, 1016, 1220, 1270, 1424, 1780, 2032, 2440, 2540, 3560, 4880, 5080, 5429, 7120, 7747, 10160, 10858, 11303, 15494, 21716, 22606, 27145, 30988, 38735, 43432, 45212, 54290, 56515, 61976, 77470, 86864, 90424, 108580, 113030, 123952, 154940, 180848, 217160, 226060, 309880, 434320, 452120, 619760, 689483, 904240, 1378966, 2757932, 3447415, 5515864, 6894830, 11031728, 13789660, 27579320, 55158640]

約数ペア:

[(1, 55158640), (2, 27579320), (4, 13789660), (5, 11031728), (8, 6894830), (10, 5515864), (16, 3447415), (20, 2757932), (40, 1378966), (61, 904240), (80, 689483), (89, 619760), (122, 452120), (127, 434320), (178, 309880), (244, 226060), (254, 217160), (305, 180848), (356, 154940), (445, 123952), (488, 113030), (508, 108580), (610, 90424), (635, 86864), (712, 77470), (890, 61976), (976, 56515), (1016, 54290), (1220, 45212), (1270, 43432), (1424, 38735), (1780, 30988), (2032, 27145), (2440, 22606), (2540, 21716), (3560, 15494), (4880, 11303), (5080, 10858), (5429, 10160), (7120, 7747)]