19615920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^2$

素因数の和:147

約数の個数: 120

約数和(自身を含む): 63809904

約数和(自身を除く): 44193984

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 37, 40, 47, 48, 60, 74, 80, 94, 111, 120, 141, 148, 185, 188, 222, 235, 240, 282, 296, 370, 376, 444, 470, 555, 564, 592, 705, 740, 752, 888, 940, 1110, 1128, 1410, 1480, 1739, 1776, 1880, 2209, 2220, 2256, 2820, 2960, 3478, 3760, 4418, 4440, 5217, 5640, 6627, 6956, 8695, 8836, 8880, 10434, 11045, 11280, 13254, 13912, 17390, 17672, 20868, 22090, 26085, 26508, 27824, 33135, 34780, 35344, 41736, 44180, 52170, 53016, 66270, 69560, 81733, 83472, 88360, 104340, 106032, 132540, 139120, 163466, 176720, 208680, 245199, 265080, 326932, 408665, 417360, 490398, 530160, 653864, 817330, 980796, 1225995, 1307728, 1634660, 1961592, 2451990, 3269320, 3923184, 4903980, 6538640, 9807960, 19615920]

約数ペア:

[(1, 19615920), (2, 9807960), (3, 6538640), (4, 4903980), (5, 3923184), (6, 3269320), (8, 2451990), (10, 1961592), (12, 1634660), (15, 1307728), (16, 1225995), (20, 980796), (24, 817330), (30, 653864), (37, 530160), (40, 490398), (47, 417360), (48, 408665), (60, 326932), (74, 265080), (80, 245199), (94, 208680), (111, 176720), (120, 163466), (141, 139120), (148, 132540), (185, 106032), (188, 104340), (222, 88360), (235, 83472), (240, 81733), (282, 69560), (296, 66270), (370, 53016), (376, 52170), (444, 44180), (470, 41736), (555, 35344), (564, 34780), (592, 33135), (705, 27824), (740, 26508), (752, 26085), (888, 22090), (940, 20868), (1110, 17672), (1128, 17390), (1410, 13912), (1480, 13254), (1739, 11280), (1776, 11045), (1880, 10434), (2209, 8880), (2220, 8836), (2256, 8695), (2820, 6956), (2960, 6627), (3478, 5640), (3760, 5217), (4418, 4440)]