21236400

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{347}}^1$

素因数の和:388

約数の個数: 180

約数和(自身を含む): 78256152

約数和(自身を除く): 57019752

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, 340, 347, 360, 400, 408, 425, 450, 510, 600, 612, 680, 694, 720, 765, 816, 850, 900, 1020, 1041, 1200, 1224, 1275, 1360, 1388, 1530, 1700, 1735, 1800, 2040, 2082, 2448, 2550, 2776, 3060, 3123, 3400, 3470, 3600, 3825, 4080, 4164, 5100, 5205, 5552, 5899, 6120, 6246, 6800, 6940, 7650, 8328, 8675, 10200, 10410, 11798, 12240, 12492, 13880, 15300, 15615, 16656, 17350, 17697, 20400, 20820, 23596, 24984, 26025, 27760, 29495, 30600, 31230, 34700, 35394, 41640, 47192, 49968, 52050, 53091, 58990, 61200, 62460, 69400, 70788, 78075, 83280, 88485, 94384, 104100, 106182, 117980, 124920, 138800, 141576, 147475, 156150, 176970, 208200, 212364, 235960, 249840, 265455, 283152, 294950, 312300, 353940, 416400, 424728, 442425, 471920, 530910, 589900, 624600, 707880, 849456, 884850, 1061820, 1179800, 1249200, 1327275, 1415760, 1769700, 2123640, 2359600, 2654550, 3539400, 4247280, 5309100, 7078800, 10618200, 21236400]

約数ペア:

[(1, 21236400), (2, 10618200), (3, 7078800), (4, 5309100), (5, 4247280), (6, 3539400), (8, 2654550), (9, 2359600), (10, 2123640), (12, 1769700), (15, 1415760), (16, 1327275), (17, 1249200), (18, 1179800), (20, 1061820), (24, 884850), (25, 849456), (30, 707880), (34, 624600), (36, 589900), (40, 530910), (45, 471920), (48, 442425), (50, 424728), (51, 416400), (60, 353940), (68, 312300), (72, 294950), (75, 283152), (80, 265455), (85, 249840), (90, 235960), (100, 212364), (102, 208200), (120, 176970), (136, 156150), (144, 147475), (150, 141576), (153, 138800), (170, 124920), (180, 117980), (200, 106182), (204, 104100), (225, 94384), (240, 88485), (255, 83280), (272, 78075), (300, 70788), (306, 69400), (340, 62460), (347, 61200), (360, 58990), (400, 53091), (408, 52050), (425, 49968), (450, 47192), (510, 41640), (600, 35394), (612, 34700), (680, 31230), (694, 30600), (720, 29495), (765, 27760), (816, 26025), (850, 24984), (900, 23596), (1020, 20820), (1041, 20400), (1200, 17697), (1224, 17350), (1275, 16656), (1360, 15615), (1388, 15300), (1530, 13880), (1700, 12492), (1735, 12240), (1800, 11798), (2040, 10410), (2082, 10200), (2448, 8675), (2550, 8328), (2776, 7650), (3060, 6940), (3123, 6800), (3400, 6246), (3470, 6120), (3600, 5899), (3825, 5552), (4080, 5205), (4164, 5100)]