72218715

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:224

約数の個数: 64

約数和(自身を含む): 127733760

約数和(自身を除く): 55515045

約数列:

[1, 3, 5, 15, 19, 43, 57, 71, 83, 95, 129, 213, 215, 249, 285, 355, 415, 645, 817, 1065, 1245, 1349, 1577, 2451, 3053, 3569, 4047, 4085, 4731, 5893, 6745, 7885, 9159, 10707, 12255, 15265, 17679, 17845, 20235, 23655, 29465, 45795, 53535, 58007, 67811, 88395, 111967, 174021, 203433, 253399, 290035, 335901, 339055, 559835, 760197, 870105, 1017165, 1266995, 1679505, 3800985, 4814581, 14443743, 24072905, 72218715]

約数ペア:

[(1, 72218715), (3, 24072905), (5, 14443743), (15, 4814581), (19, 3800985), (43, 1679505), (57, 1266995), (71, 1017165), (83, 870105), (95, 760197), (129, 559835), (213, 339055), (215, 335901), (249, 290035), (285, 253399), (355, 203433), (415, 174021), (645, 111967), (817, 88395), (1065, 67811), (1245, 58007), (1349, 53535), (1577, 45795), (2451, 29465), (3053, 23655), (3569, 20235), (4047, 17845), (4085, 17679), (4731, 15265), (5893, 12255), (6745, 10707), (7885, 9159)]