81654020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{30697}}^1$

素因数の和:30732

約数の個数: 48

約数和(自身を含む): 206290560

約数和(自身を除く): 124636540

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 30697, 61394, 122788, 153485, 214879, 306970, 429758, 583243, 613940, 859516, 1074395, 1166486, 2148790, 2332972, 2916215, 4082701, 4297580, 5832430, 8165402, 11664860, 16330804, 20413505, 40827010, 81654020]

約数ペア:

[(1, 81654020), (2, 40827010), (4, 20413505), (5, 16330804), (7, 11664860), (10, 8165402), (14, 5832430), (19, 4297580), (20, 4082701), (28, 2916215), (35, 2332972), (38, 2148790), (70, 1166486), (76, 1074395), (95, 859516), (133, 613940), (140, 583243), (190, 429758), (266, 306970), (380, 214879), (532, 153485), (665, 122788), (1330, 61394), (2660, 30697)]