199428520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^2\times {\mathrm{61}}^1$

素因数の和:203

約数の個数: 96

約数和(自身を含む): 478574280

約数和(自身を除く): 279145760

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 47, 61, 74, 94, 122, 148, 185, 188, 235, 244, 296, 305, 370, 376, 470, 488, 610, 740, 940, 1220, 1480, 1739, 1880, 2209, 2257, 2440, 2867, 3478, 4418, 4514, 5734, 6956, 8695, 8836, 9028, 11045, 11285, 11468, 13912, 14335, 17390, 17672, 18056, 22090, 22570, 22936, 28670, 34780, 44180, 45140, 57340, 69560, 81733, 88360, 90280, 106079, 114680, 134749, 163466, 212158, 269498, 326932, 408665, 424316, 530395, 538996, 653864, 673745, 817330, 848632, 1060790, 1077992, 1347490, 1634660, 2121580, 2694980, 3269320, 4243160, 4985713, 5389960, 9971426, 19942852, 24928565, 39885704, 49857130, 99714260, 199428520]

約数ペア:

[(1, 199428520), (2, 99714260), (4, 49857130), (5, 39885704), (8, 24928565), (10, 19942852), (20, 9971426), (37, 5389960), (40, 4985713), (47, 4243160), (61, 3269320), (74, 2694980), (94, 2121580), (122, 1634660), (148, 1347490), (185, 1077992), (188, 1060790), (235, 848632), (244, 817330), (296, 673745), (305, 653864), (370, 538996), (376, 530395), (470, 424316), (488, 408665), (610, 326932), (740, 269498), (940, 212158), (1220, 163466), (1480, 134749), (1739, 114680), (1880, 106079), (2209, 90280), (2257, 88360), (2440, 81733), (2867, 69560), (3478, 57340), (4418, 45140), (4514, 44180), (5734, 34780), (6956, 28670), (8695, 22936), (8836, 22570), (9028, 22090), (11045, 18056), (11285, 17672), (11468, 17390), (13912, 14335)]