19400400

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{317}}^1$

素因数の和:358

約数の個数: 180

約数和(自身を含む): 71509932

約数和(自身を除く): 52109532

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 25, 30, 34, 36, 40, 45, 48, 50, 51, 60, 68, 72, 75, 80, 85, 90, 100, 102, 120, 136, 144, 150, 153, 170, 180, 200, 204, 225, 240, 255, 272, 300, 306, 317, 340, 360, 400, 408, 425, 450, 510, 600, 612, 634, 680, 720, 765, 816, 850, 900, 951, 1020, 1200, 1224, 1268, 1275, 1360, 1530, 1585, 1700, 1800, 1902, 2040, 2448, 2536, 2550, 2853, 3060, 3170, 3400, 3600, 3804, 3825, 4080, 4755, 5072, 5100, 5389, 5706, 6120, 6340, 6800, 7608, 7650, 7925, 9510, 10200, 10778, 11412, 12240, 12680, 14265, 15216, 15300, 15850, 16167, 19020, 20400, 21556, 22824, 23775, 25360, 26945, 28530, 30600, 31700, 32334, 38040, 43112, 45648, 47550, 48501, 53890, 57060, 61200, 63400, 64668, 71325, 76080, 80835, 86224, 95100, 97002, 107780, 114120, 126800, 129336, 134725, 142650, 161670, 190200, 194004, 215560, 228240, 242505, 258672, 269450, 285300, 323340, 380400, 388008, 404175, 431120, 485010, 538900, 570600, 646680, 776016, 808350, 970020, 1077800, 1141200, 1212525, 1293360, 1616700, 1940040, 2155600, 2425050, 3233400, 3880080, 4850100, 6466800, 9700200, 19400400]

約数ペア:

[(1, 19400400), (2, 9700200), (3, 6466800), (4, 4850100), (5, 3880080), (6, 3233400), (8, 2425050), (9, 2155600), (10, 1940040), (12, 1616700), (15, 1293360), (16, 1212525), (17, 1141200), (18, 1077800), (20, 970020), (24, 808350), (25, 776016), (30, 646680), (34, 570600), (36, 538900), (40, 485010), (45, 431120), (48, 404175), (50, 388008), (51, 380400), (60, 323340), (68, 285300), (72, 269450), (75, 258672), (80, 242505), (85, 228240), (90, 215560), (100, 194004), (102, 190200), (120, 161670), (136, 142650), (144, 134725), (150, 129336), (153, 126800), (170, 114120), (180, 107780), (200, 97002), (204, 95100), (225, 86224), (240, 80835), (255, 76080), (272, 71325), (300, 64668), (306, 63400), (317, 61200), (340, 57060), (360, 53890), (400, 48501), (408, 47550), (425, 45648), (450, 43112), (510, 38040), (600, 32334), (612, 31700), (634, 30600), (680, 28530), (720, 26945), (765, 25360), (816, 23775), (850, 22824), (900, 21556), (951, 20400), (1020, 19020), (1200, 16167), (1224, 15850), (1268, 15300), (1275, 15216), (1360, 14265), (1530, 12680), (1585, 12240), (1700, 11412), (1800, 10778), (1902, 10200), (2040, 9510), (2448, 7925), (2536, 7650), (2550, 7608), (2853, 6800), (3060, 6340), (3170, 6120), (3400, 5706), (3600, 5389), (3804, 5100), (3825, 5072), (4080, 4755)]