1657708220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{12347}}^1$

素因数の和:12507

約数の個数: 72

約数和(自身を含む): 4079433456

約数和(自身を除く): 2421725236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 137, 140, 196, 245, 274, 490, 548, 685, 959, 980, 1370, 1918, 2740, 3836, 4795, 6713, 9590, 12347, 13426, 19180, 24694, 26852, 33565, 49388, 61735, 67130, 86429, 123470, 134260, 172858, 246940, 345716, 432145, 605003, 864290, 1210006, 1691539, 1728580, 2420012, 3025015, 3383078, 6050030, 6766156, 8457695, 11840773, 12100060, 16915390, 23681546, 33830780, 47363092, 59203865, 82885411, 118407730, 165770822, 236815460, 331541644, 414427055, 828854110, 1657708220]

約数ペア:

[(1, 1657708220), (2, 828854110), (4, 414427055), (5, 331541644), (7, 236815460), (10, 165770822), (14, 118407730), (20, 82885411), (28, 59203865), (35, 47363092), (49, 33830780), (70, 23681546), (98, 16915390), (137, 12100060), (140, 11840773), (196, 8457695), (245, 6766156), (274, 6050030), (490, 3383078), (548, 3025015), (685, 2420012), (959, 1728580), (980, 1691539), (1370, 1210006), (1918, 864290), (2740, 605003), (3836, 432145), (4795, 345716), (6713, 246940), (9590, 172858), (12347, 134260), (13426, 123470), (19180, 86429), (24694, 67130), (26852, 61735), (33565, 49388)]