242567720

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{1117}}^1$

素因数の和:1278

約数の個数: 64

約数和(自身を含む): 561459600

約数和(自身を除く): 318891880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 89, 122, 178, 244, 305, 356, 445, 488, 610, 712, 890, 1117, 1220, 1780, 2234, 2440, 3560, 4468, 5429, 5585, 8936, 10858, 11170, 21716, 22340, 27145, 43432, 44680, 54290, 68137, 99413, 108580, 136274, 198826, 217160, 272548, 340685, 397652, 497065, 545096, 681370, 795304, 994130, 1362740, 1988260, 2725480, 3976520, 6064193, 12128386, 24256772, 30320965, 48513544, 60641930, 121283860, 242567720]

約数ペア:

[(1, 242567720), (2, 121283860), (4, 60641930), (5, 48513544), (8, 30320965), (10, 24256772), (20, 12128386), (40, 6064193), (61, 3976520), (89, 2725480), (122, 1988260), (178, 1362740), (244, 994130), (305, 795304), (356, 681370), (445, 545096), (488, 497065), (610, 397652), (712, 340685), (890, 272548), (1117, 217160), (1220, 198826), (1780, 136274), (2234, 108580), (2440, 99413), (3560, 68137), (4468, 54290), (5429, 44680), (5585, 43432), (8936, 27145), (10858, 22340), (11170, 21716)]