90180860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1889}}^1$

素因数の和:1947

約数の個数: 96

約数和(自身を含む): 243855360

約数和(自身を除く): 153674500

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 55, 62, 70, 77, 110, 124, 140, 154, 155, 217, 220, 308, 310, 341, 385, 434, 620, 682, 770, 868, 1085, 1364, 1540, 1705, 1889, 2170, 2387, 3410, 3778, 4340, 4774, 6820, 7556, 9445, 9548, 11935, 13223, 18890, 20779, 23870, 26446, 37780, 41558, 47740, 52892, 58559, 66115, 83116, 103895, 117118, 132230, 145453, 207790, 234236, 264460, 290906, 292795, 409913, 415580, 581812, 585590, 644149, 727265, 819826, 1171180, 1288298, 1454530, 1639652, 2049565, 2576596, 2909060, 3220745, 4099130, 4509043, 6441490, 8198260, 9018086, 12882980, 18036172, 22545215, 45090430, 90180860]

約数ペア:

[(1, 90180860), (2, 45090430), (4, 22545215), (5, 18036172), (7, 12882980), (10, 9018086), (11, 8198260), (14, 6441490), (20, 4509043), (22, 4099130), (28, 3220745), (31, 2909060), (35, 2576596), (44, 2049565), (55, 1639652), (62, 1454530), (70, 1288298), (77, 1171180), (110, 819826), (124, 727265), (140, 644149), (154, 585590), (155, 581812), (217, 415580), (220, 409913), (308, 292795), (310, 290906), (341, 264460), (385, 234236), (434, 207790), (620, 145453), (682, 132230), (770, 117118), (868, 103895), (1085, 83116), (1364, 66115), (1540, 58559), (1705, 52892), (1889, 47740), (2170, 41558), (2387, 37780), (3410, 26446), (3778, 23870), (4340, 20779), (4774, 18890), (6820, 13223), (7556, 11935), (9445, 9548)]