989812740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{336671}}^1$

素因数の和:336697

約数の個数: 72

約数和(自身を含む): 3223971072

約数和(自身を除く): 2234158332

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 336671, 673342, 1010013, 1346684, 1683355, 2020026, 2356697, 3366710, 4040052, 4713394, 5050065, 6733420, 7070091, 9426788, 10100130, 11783485, 14140182, 16496879, 20200260, 23566970, 28280364, 32993758, 35350455, 47133940, 49490637, 65987516, 70700910, 82484395, 98981274, 141401820, 164968790, 197962548, 247453185, 329937580, 494906370, 989812740]

約数ペア:

[(1, 989812740), (2, 494906370), (3, 329937580), (4, 247453185), (5, 197962548), (6, 164968790), (7, 141401820), (10, 98981274), (12, 82484395), (14, 70700910), (15, 65987516), (20, 49490637), (21, 47133940), (28, 35350455), (30, 32993758), (35, 28280364), (42, 23566970), (49, 20200260), (60, 16496879), (70, 14140182), (84, 11783485), (98, 10100130), (105, 9426788), (140, 7070091), (147, 6733420), (196, 5050065), (210, 4713394), (245, 4040052), (294, 3366710), (420, 2356697), (490, 2020026), (588, 1683355), (735, 1346684), (980, 1010013), (1470, 673342), (2940, 336671)]