890991780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{29879}}^1$

素因数の和:29969

約数の個数: 96

約数和(自身を含む): 2891427840

約数和(自身を除く): 2000436060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 71, 84, 105, 140, 142, 210, 213, 284, 355, 420, 426, 497, 710, 852, 994, 1065, 1420, 1491, 1988, 2130, 2485, 2982, 4260, 4970, 5964, 7455, 9940, 14910, 29820, 29879, 59758, 89637, 119516, 149395, 179274, 209153, 298790, 358548, 418306, 448185, 597580, 627459, 836612, 896370, 1045765, 1254918, 1792740, 2091530, 2121409, 2509836, 3137295, 4183060, 4242818, 6274590, 6364227, 8485636, 10607045, 12549180, 12728454, 14849863, 21214090, 25456908, 29699726, 31821135, 42428180, 44549589, 59399452, 63642270, 74249315, 89099178, 127284540, 148498630, 178198356, 222747945, 296997260, 445495890, 890991780]

約数ペア:

[(1, 890991780), (2, 445495890), (3, 296997260), (4, 222747945), (5, 178198356), (6, 148498630), (7, 127284540), (10, 89099178), (12, 74249315), (14, 63642270), (15, 59399452), (20, 44549589), (21, 42428180), (28, 31821135), (30, 29699726), (35, 25456908), (42, 21214090), (60, 14849863), (70, 12728454), (71, 12549180), (84, 10607045), (105, 8485636), (140, 6364227), (142, 6274590), (210, 4242818), (213, 4183060), (284, 3137295), (355, 2509836), (420, 2121409), (426, 2091530), (497, 1792740), (710, 1254918), (852, 1045765), (994, 896370), (1065, 836612), (1420, 627459), (1491, 597580), (1988, 448185), (2130, 418306), (2485, 358548), (2982, 298790), (4260, 209153), (4970, 179274), (5964, 149395), (7455, 119516), (9940, 89637), (14910, 59758), (29820, 29879)]