30290720

素因数分解:

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

素因数の和:274

約数の個数: 72

約数和(自身を含む): 74320092

約数和(自身を除く): 44029372

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 197, 248, 310, 394, 496, 620, 788, 961, 985, 992, 1240, 1576, 1922, 1970, 2480, 3152, 3844, 3940, 4805, 4960, 6107, 6304, 7688, 7880, 9610, 12214, 15376, 15760, 19220, 24428, 30535, 30752, 31520, 38440, 48856, 61070, 76880, 97712, 122140, 153760, 189317, 195424, 244280, 378634, 488560, 757268, 946585, 977120, 1514536, 1893170, 3029072, 3786340, 6058144, 7572680, 15145360, 30290720]

約数ペア:

[(1, 30290720), (2, 15145360), (4, 7572680), (5, 6058144), (8, 3786340), (10, 3029072), (16, 1893170), (20, 1514536), (31, 977120), (32, 946585), (40, 757268), (62, 488560), (80, 378634), (124, 244280), (155, 195424), (160, 189317), (197, 153760), (248, 122140), (310, 97712), (394, 76880), (496, 61070), (620, 48856), (788, 38440), (961, 31520), (985, 30752), (992, 30535), (1240, 24428), (1576, 19220), (1922, 15760), (1970, 15376), (2480, 12214), (3152, 9610), (3844, 7880), (3940, 7688), (4805, 6304), (4960, 6107)]