245257120

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1$

素因数の和:494

約数の個数: 96

約数和(自身を含む): 603542016

約数和(自身を除く): 358284896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 197, 248, 251, 310, 394, 496, 502, 620, 788, 985, 992, 1004, 1240, 1255, 1576, 1970, 2008, 2480, 2510, 3152, 3940, 4016, 4960, 5020, 6107, 6304, 7781, 7880, 8032, 10040, 12214, 15562, 15760, 20080, 24428, 30535, 31124, 31520, 38905, 40160, 48856, 49447, 61070, 62248, 77810, 97712, 98894, 122140, 124496, 155620, 195424, 197788, 244280, 247235, 248992, 311240, 395576, 488560, 494470, 622480, 791152, 977120, 988940, 1244960, 1532857, 1582304, 1977880, 3065714, 3955760, 6131428, 7664285, 7911520, 12262856, 15328570, 24525712, 30657140, 49051424, 61314280, 122628560, 245257120]

約数ペア:

[(1, 245257120), (2, 122628560), (4, 61314280), (5, 49051424), (8, 30657140), (10, 24525712), (16, 15328570), (20, 12262856), (31, 7911520), (32, 7664285), (40, 6131428), (62, 3955760), (80, 3065714), (124, 1977880), (155, 1582304), (160, 1532857), (197, 1244960), (248, 988940), (251, 977120), (310, 791152), (394, 622480), (496, 494470), (502, 488560), (620, 395576), (788, 311240), (985, 248992), (992, 247235), (1004, 244280), (1240, 197788), (1255, 195424), (1576, 155620), (1970, 124496), (2008, 122140), (2480, 98894), (2510, 97712), (3152, 77810), (3940, 62248), (4016, 61070), (4960, 49447), (5020, 48856), (6107, 40160), (6304, 38905), (7781, 31520), (7880, 31124), (8032, 30535), (10040, 24428), (12214, 20080), (15562, 15760)]