678018420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{198251}}^1$

素因数の和:198285

約数の個数: 72

約数和(自身を含む): 2164911840

約数和(自身を除く): 1486893420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 198251, 396502, 594753, 793004, 991255, 1189506, 1784259, 1982510, 2379012, 2973765, 3568518, 3766769, 3965020, 5947530, 7137036, 7533538, 8921295, 11300307, 11895060, 15067076, 17842590, 18833845, 22600614, 33900921, 35685180, 37667690, 45201228, 56501535, 67801842, 75335380, 113003070, 135603684, 169504605, 226006140, 339009210, 678018420]

約数ペア:

[(1, 678018420), (2, 339009210), (3, 226006140), (4, 169504605), (5, 135603684), (6, 113003070), (9, 75335380), (10, 67801842), (12, 56501535), (15, 45201228), (18, 37667690), (19, 35685180), (20, 33900921), (30, 22600614), (36, 18833845), (38, 17842590), (45, 15067076), (57, 11895060), (60, 11300307), (76, 8921295), (90, 7533538), (95, 7137036), (114, 5947530), (171, 3965020), (180, 3766769), (190, 3568518), (228, 2973765), (285, 2379012), (342, 1982510), (380, 1784259), (570, 1189506), (684, 991255), (855, 793004), (1140, 594753), (1710, 396502), (3420, 198251)]