15678420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{809}}^1$

素因数の和:857

約数の個数: 96

約数和(自身を含む): 48988800

約数和(自身を除く): 33310380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 19, 20, 30, 34, 38, 51, 57, 60, 68, 76, 85, 95, 102, 114, 170, 190, 204, 228, 255, 285, 323, 340, 380, 510, 570, 646, 809, 969, 1020, 1140, 1292, 1615, 1618, 1938, 2427, 3230, 3236, 3876, 4045, 4845, 4854, 6460, 8090, 9690, 9708, 12135, 13753, 15371, 16180, 19380, 24270, 27506, 30742, 41259, 46113, 48540, 55012, 61484, 68765, 76855, 82518, 92226, 137530, 153710, 165036, 184452, 206295, 230565, 261307, 275060, 307420, 412590, 461130, 522614, 783921, 825180, 922260, 1045228, 1306535, 1567842, 2613070, 3135684, 3919605, 5226140, 7839210, 15678420]

約数ペア:

[(1, 15678420), (2, 7839210), (3, 5226140), (4, 3919605), (5, 3135684), (6, 2613070), (10, 1567842), (12, 1306535), (15, 1045228), (17, 922260), (19, 825180), (20, 783921), (30, 522614), (34, 461130), (38, 412590), (51, 307420), (57, 275060), (60, 261307), (68, 230565), (76, 206295), (85, 184452), (95, 165036), (102, 153710), (114, 137530), (170, 92226), (190, 82518), (204, 76855), (228, 68765), (255, 61484), (285, 55012), (323, 48540), (340, 46113), (380, 41259), (510, 30742), (570, 27506), (646, 24270), (809, 19380), (969, 16180), (1020, 15371), (1140, 13753), (1292, 12135), (1615, 9708), (1618, 9690), (1938, 8090), (2427, 6460), (3230, 4854), (3236, 4845), (3876, 4045)]