19638400

素因数分解:

$2^7\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2$

素因数の和:79

約数の個数: 144

約数和(自身を含む): 54212490

約数和(自身を除く): 34574090

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 25, 32, 34, 38, 40, 50, 64, 68, 76, 80, 85, 95, 100, 128, 136, 152, 160, 170, 190, 200, 272, 304, 320, 323, 340, 361, 380, 400, 425, 475, 544, 608, 640, 646, 680, 722, 760, 800, 850, 950, 1088, 1216, 1292, 1360, 1444, 1520, 1600, 1615, 1700, 1805, 1900, 2176, 2432, 2584, 2720, 2888, 3040, 3200, 3230, 3400, 3610, 3800, 5168, 5440, 5776, 6080, 6137, 6460, 6800, 7220, 7600, 8075, 9025, 10336, 10880, 11552, 12160, 12274, 12920, 13600, 14440, 15200, 16150, 18050, 20672, 23104, 24548, 25840, 27200, 28880, 30400, 30685, 32300, 36100, 41344, 46208, 49096, 51680, 54400, 57760, 60800, 61370, 64600, 72200, 98192, 103360, 115520, 122740, 129200, 144400, 153425, 196384, 206720, 231040, 245480, 258400, 288800, 306850, 392768, 490960, 516800, 577600, 613700, 785536, 981920, 1033600, 1155200, 1227400, 1963840, 2454800, 3927680, 4909600, 9819200, 19638400]

約数ペア:

[(1, 19638400), (2, 9819200), (4, 4909600), (5, 3927680), (8, 2454800), (10, 1963840), (16, 1227400), (17, 1155200), (19, 1033600), (20, 981920), (25, 785536), (32, 613700), (34, 577600), (38, 516800), (40, 490960), (50, 392768), (64, 306850), (68, 288800), (76, 258400), (80, 245480), (85, 231040), (95, 206720), (100, 196384), (128, 153425), (136, 144400), (152, 129200), (160, 122740), (170, 115520), (190, 103360), (200, 98192), (272, 72200), (304, 64600), (320, 61370), (323, 60800), (340, 57760), (361, 54400), (380, 51680), (400, 49096), (425, 46208), (475, 41344), (544, 36100), (608, 32300), (640, 30685), (646, 30400), (680, 28880), (722, 27200), (760, 25840), (800, 24548), (850, 23104), (950, 20672), (1088, 18050), (1216, 16150), (1292, 15200), (1360, 14440), (1444, 13600), (1520, 12920), (1600, 12274), (1615, 12160), (1700, 11552), (1805, 10880), (1900, 10336), (2176, 9025), (2432, 8075), (2584, 7600), (2720, 7220), (2888, 6800), (3040, 6460), (3200, 6137), (3230, 6080), (3400, 5776), (3610, 5440), (3800, 5168)]