156747537220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{840109}}^1$

素因数の和:840628

約数の個数: 48

約数和(自身を含む): 347200660800

約数和(自身を除く): 190453123580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 491, 982, 1964, 2455, 4910, 9329, 9820, 18658, 37316, 46645, 93290, 186580, 840109, 1680218, 3360436, 4200545, 8401090, 15962071, 16802180, 31924142, 63848284, 79810355, 159620710, 319241420, 412493519, 824987038, 1649974076, 2062467595, 4124935190, 7837376861, 8249870380, 15674753722, 31349507444, 39186884305, 78373768610, 156747537220]

約数ペア:

[(1, 156747537220), (2, 78373768610), (4, 39186884305), (5, 31349507444), (10, 15674753722), (19, 8249870380), (20, 7837376861), (38, 4124935190), (76, 2062467595), (95, 1649974076), (190, 824987038), (380, 412493519), (491, 319241420), (982, 159620710), (1964, 79810355), (2455, 63848284), (4910, 31924142), (9329, 16802180), (9820, 15962071), (18658, 8401090), (37316, 4200545), (46645, 3360436), (93290, 1680218), (186580, 840109)]