191220440

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{2749}}^1$

素因数の和:2844

約数の個数: 64

約数和(自身を含む): 451440000

約数和(自身を除く): 260219560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 47, 74, 94, 148, 185, 188, 235, 296, 370, 376, 470, 740, 940, 1480, 1739, 1880, 2749, 3478, 5498, 6956, 8695, 10996, 13745, 13912, 17390, 21992, 27490, 34780, 54980, 69560, 101713, 109960, 129203, 203426, 258406, 406852, 508565, 516812, 646015, 813704, 1017130, 1033624, 1292030, 2034260, 2584060, 4068520, 4780511, 5168120, 9561022, 19122044, 23902555, 38244088, 47805110, 95610220, 191220440]

約数ペア:

[(1, 191220440), (2, 95610220), (4, 47805110), (5, 38244088), (8, 23902555), (10, 19122044), (20, 9561022), (37, 5168120), (40, 4780511), (47, 4068520), (74, 2584060), (94, 2034260), (148, 1292030), (185, 1033624), (188, 1017130), (235, 813704), (296, 646015), (370, 516812), (376, 508565), (470, 406852), (740, 258406), (940, 203426), (1480, 129203), (1739, 109960), (1880, 101713), (2749, 69560), (3478, 54980), (5498, 34780), (6956, 27490), (8695, 21992), (10996, 17390), (13745, 13912)]