28731610

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:191

約数の個数: 64

約数和(自身を含む): 57674880

約数和(自身を除く): 28943270

約数列:

[1, 2, 5, 10, 19, 37, 38, 61, 67, 74, 95, 122, 134, 185, 190, 305, 335, 370, 610, 670, 703, 1159, 1273, 1406, 2257, 2318, 2479, 2546, 3515, 4087, 4514, 4958, 5795, 6365, 7030, 8174, 11285, 11590, 12395, 12730, 20435, 22570, 24790, 40870, 42883, 47101, 77653, 85766, 94202, 151219, 155306, 214415, 235505, 302438, 388265, 428830, 471010, 756095, 776530, 1512190, 2873161, 5746322, 14365805, 28731610]

約数ペア:

[(1, 28731610), (2, 14365805), (5, 5746322), (10, 2873161), (19, 1512190), (37, 776530), (38, 756095), (61, 471010), (67, 428830), (74, 388265), (95, 302438), (122, 235505), (134, 214415), (185, 155306), (190, 151219), (305, 94202), (335, 85766), (370, 77653), (610, 47101), (670, 42883), (703, 40870), (1159, 24790), (1273, 22570), (1406, 20435), (2257, 12730), (2318, 12395), (2479, 11590), (2546, 11285), (3515, 8174), (4087, 7030), (4514, 6365), (4958, 5795)]