18828720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1$

素因数の和:424

約数の個数: 160

約数和(自身を含む): 67852800

約数和(自身を除く): 49024080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 48, 54, 60, 69, 72, 80, 90, 92, 108, 115, 120, 135, 138, 144, 180, 184, 207, 216, 230, 240, 270, 276, 345, 360, 368, 379, 414, 432, 460, 540, 552, 621, 690, 720, 758, 828, 920, 1035, 1080, 1104, 1137, 1242, 1380, 1516, 1656, 1840, 1895, 2070, 2160, 2274, 2484, 2760, 3032, 3105, 3312, 3411, 3790, 4140, 4548, 4968, 5520, 5685, 6064, 6210, 6822, 7580, 8280, 8717, 9096, 9936, 10233, 11370, 12420, 13644, 15160, 16560, 17055, 17434, 18192, 20466, 22740, 24840, 26151, 27288, 30320, 34110, 34868, 40932, 43585, 45480, 49680, 51165, 52302, 54576, 68220, 69736, 78453, 81864, 87170, 90960, 102330, 104604, 130755, 136440, 139472, 156906, 163728, 174340, 204660, 209208, 235359, 261510, 272880, 313812, 348680, 392265, 409320, 418416, 470718, 523020, 627624, 697360, 784530, 818640, 941436, 1046040, 1176795, 1255248, 1569060, 1882872, 2092080, 2353590, 3138120, 3765744, 4707180, 6276240, 9414360, 18828720]

約数ペア:

[(1, 18828720), (2, 9414360), (3, 6276240), (4, 4707180), (5, 3765744), (6, 3138120), (8, 2353590), (9, 2092080), (10, 1882872), (12, 1569060), (15, 1255248), (16, 1176795), (18, 1046040), (20, 941436), (23, 818640), (24, 784530), (27, 697360), (30, 627624), (36, 523020), (40, 470718), (45, 418416), (46, 409320), (48, 392265), (54, 348680), (60, 313812), (69, 272880), (72, 261510), (80, 235359), (90, 209208), (92, 204660), (108, 174340), (115, 163728), (120, 156906), (135, 139472), (138, 136440), (144, 130755), (180, 104604), (184, 102330), (207, 90960), (216, 87170), (230, 81864), (240, 78453), (270, 69736), (276, 68220), (345, 54576), (360, 52302), (368, 51165), (379, 49680), (414, 45480), (432, 43585), (460, 40932), (540, 34868), (552, 34110), (621, 30320), (690, 27288), (720, 26151), (758, 24840), (828, 22740), (920, 20466), (1035, 18192), (1080, 17434), (1104, 17055), (1137, 16560), (1242, 15160), (1380, 13644), (1516, 12420), (1656, 11370), (1840, 10233), (1895, 9936), (2070, 9096), (2160, 8717), (2274, 8280), (2484, 7580), (2760, 6822), (3032, 6210), (3105, 6064), (3312, 5685), (3411, 5520), (3790, 4968), (4140, 4548)]