155212520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{617}}^1$

素因数の和:978

約数の個数: 64

約数和(自身を含む): 369316800

約数和(自身を除く): 214104280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 331, 380, 617, 662, 760, 1234, 1324, 1655, 2468, 2648, 3085, 3310, 4936, 6170, 6289, 6620, 11723, 12340, 12578, 13240, 23446, 24680, 25156, 31445, 46892, 50312, 58615, 62890, 93784, 117230, 125780, 204227, 234460, 251560, 408454, 468920, 816908, 1021135, 1633816, 2042270, 3880313, 4084540, 7760626, 8169080, 15521252, 19401565, 31042504, 38803130, 77606260, 155212520]

約数ペア:

[(1, 155212520), (2, 77606260), (4, 38803130), (5, 31042504), (8, 19401565), (10, 15521252), (19, 8169080), (20, 7760626), (38, 4084540), (40, 3880313), (76, 2042270), (95, 1633816), (152, 1021135), (190, 816908), (331, 468920), (380, 408454), (617, 251560), (662, 234460), (760, 204227), (1234, 125780), (1324, 117230), (1655, 93784), (2468, 62890), (2648, 58615), (3085, 50312), (3310, 46892), (4936, 31445), (6170, 25156), (6289, 24680), (6620, 23446), (11723, 13240), (12340, 12578)]