101840720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{509}}^1$

素因数の和:624

約数の個数: 80

約数和(自身を含む): 247015440

約数和(自身を除く): 145174720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 61, 80, 82, 122, 164, 205, 244, 305, 328, 410, 488, 509, 610, 656, 820, 976, 1018, 1220, 1640, 2036, 2440, 2501, 2545, 3280, 4072, 4880, 5002, 5090, 8144, 10004, 10180, 12505, 20008, 20360, 20869, 25010, 31049, 40016, 40720, 41738, 50020, 62098, 83476, 100040, 104345, 124196, 155245, 166952, 200080, 208690, 248392, 310490, 333904, 417380, 496784, 620980, 834760, 1241960, 1273009, 1669520, 2483920, 2546018, 5092036, 6365045, 10184072, 12730090, 20368144, 25460180, 50920360, 101840720]

約数ペア:

[(1, 101840720), (2, 50920360), (4, 25460180), (5, 20368144), (8, 12730090), (10, 10184072), (16, 6365045), (20, 5092036), (40, 2546018), (41, 2483920), (61, 1669520), (80, 1273009), (82, 1241960), (122, 834760), (164, 620980), (205, 496784), (244, 417380), (305, 333904), (328, 310490), (410, 248392), (488, 208690), (509, 200080), (610, 166952), (656, 155245), (820, 124196), (976, 104345), (1018, 100040), (1220, 83476), (1640, 62098), (2036, 50020), (2440, 41738), (2501, 40720), (2545, 40016), (3280, 31049), (4072, 25010), (4880, 20869), (5002, 20360), (5090, 20008), (8144, 12505), (10004, 10180)]