64698420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:182

約数の個数: 144

約数和(自身を含む): 199704960

約数和(自身を除く): 135006540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 29, 30, 38, 57, 58, 60, 76, 87, 95, 103, 114, 116, 145, 174, 190, 206, 228, 285, 290, 309, 348, 361, 380, 412, 435, 515, 551, 570, 580, 618, 722, 870, 1030, 1083, 1102, 1140, 1236, 1444, 1545, 1653, 1740, 1805, 1957, 2060, 2166, 2204, 2755, 2987, 3090, 3306, 3610, 3914, 4332, 5415, 5510, 5871, 5974, 6180, 6612, 7220, 7828, 8265, 8961, 9785, 10469, 10830, 11020, 11742, 11948, 14935, 16530, 17922, 19570, 20938, 21660, 23484, 29355, 29870, 31407, 33060, 35844, 37183, 39140, 41876, 44805, 52345, 56753, 58710, 59740, 62814, 74366, 89610, 104690, 111549, 113506, 117420, 125628, 148732, 157035, 170259, 179220, 185915, 209380, 223098, 227012, 283765, 314070, 340518, 371830, 446196, 557745, 567530, 628140, 681036, 743660, 851295, 1078307, 1115490, 1135060, 1702590, 2156614, 2230980, 3234921, 3405180, 4313228, 5391535, 6469842, 10783070, 12939684, 16174605, 21566140, 32349210, 64698420]

約数ペア:

[(1, 64698420), (2, 32349210), (3, 21566140), (4, 16174605), (5, 12939684), (6, 10783070), (10, 6469842), (12, 5391535), (15, 4313228), (19, 3405180), (20, 3234921), (29, 2230980), (30, 2156614), (38, 1702590), (57, 1135060), (58, 1115490), (60, 1078307), (76, 851295), (87, 743660), (95, 681036), (103, 628140), (114, 567530), (116, 557745), (145, 446196), (174, 371830), (190, 340518), (206, 314070), (228, 283765), (285, 227012), (290, 223098), (309, 209380), (348, 185915), (361, 179220), (380, 170259), (412, 157035), (435, 148732), (515, 125628), (551, 117420), (570, 113506), (580, 111549), (618, 104690), (722, 89610), (870, 74366), (1030, 62814), (1083, 59740), (1102, 58710), (1140, 56753), (1236, 52345), (1444, 44805), (1545, 41876), (1653, 39140), (1740, 37183), (1805, 35844), (1957, 33060), (2060, 31407), (2166, 29870), (2204, 29355), (2755, 23484), (2987, 21660), (3090, 20938), (3306, 19570), (3610, 17922), (3914, 16530), (4332, 14935), (5415, 11948), (5510, 11742), (5871, 11020), (5974, 10830), (6180, 10469), (6612, 9785), (7220, 8961), (7828, 8265)]