280960020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{491}}^1$

素因数の和:551

約数の個数: 216

約数和(自身を含む): 989640288

約数和(自身を除く): 708680268

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 17, 18, 20, 22, 30, 33, 34, 36, 44, 45, 51, 55, 60, 66, 68, 85, 90, 99, 102, 110, 132, 153, 165, 170, 180, 187, 198, 204, 220, 255, 289, 306, 330, 340, 374, 396, 491, 495, 510, 561, 578, 612, 660, 748, 765, 867, 935, 982, 990, 1020, 1122, 1156, 1445, 1473, 1530, 1683, 1734, 1870, 1964, 1980, 2244, 2455, 2601, 2805, 2890, 2946, 3060, 3179, 3366, 3468, 3740, 4335, 4419, 4910, 5202, 5401, 5610, 5780, 5892, 6358, 6732, 7365, 8347, 8415, 8670, 8838, 9537, 9820, 10404, 10802, 11220, 12716, 13005, 14730, 15895, 16203, 16694, 16830, 17340, 17676, 19074, 21604, 22095, 25041, 26010, 27005, 28611, 29460, 31790, 32406, 33388, 33660, 38148, 41735, 44190, 47685, 48609, 50082, 52020, 54010, 57222, 63580, 64812, 75123, 81015, 83470, 88380, 91817, 95370, 97218, 100164, 108020, 114444, 125205, 141899, 143055, 150246, 162030, 166940, 183634, 190740, 194436, 243045, 250410, 275451, 283798, 286110, 300492, 324060, 367268, 375615, 425697, 459085, 486090, 500820, 550902, 567596, 572220, 709495, 751230, 826353, 851394, 918170, 972180, 1101804, 1277091, 1377255, 1418990, 1502460, 1560889, 1652706, 1702788, 1836340, 2128485, 2554182, 2754510, 2837980, 3121778, 3305412, 4131765, 4256970, 4682667, 5108364, 5509020, 6243556, 6385455, 7804445, 8263530, 8513940, 9365334, 12770910, 14048001, 15608890, 16527060, 18730668, 23413335, 25541820, 28096002, 31217780, 46826670, 56192004, 70240005, 93653340, 140480010, 280960020]

約数ペア:

[(1, 280960020), (2, 140480010), (3, 93653340), (4, 70240005), (5, 56192004), (6, 46826670), (9, 31217780), (10, 28096002), (11, 25541820), (12, 23413335), (15, 18730668), (17, 16527060), (18, 15608890), (20, 14048001), (22, 12770910), (30, 9365334), (33, 8513940), (34, 8263530), (36, 7804445), (44, 6385455), (45, 6243556), (51, 5509020), (55, 5108364), (60, 4682667), (66, 4256970), (68, 4131765), (85, 3305412), (90, 3121778), (99, 2837980), (102, 2754510), (110, 2554182), (132, 2128485), (153, 1836340), (165, 1702788), (170, 1652706), (180, 1560889), (187, 1502460), (198, 1418990), (204, 1377255), (220, 1277091), (255, 1101804), (289, 972180), (306, 918170), (330, 851394), (340, 826353), (374, 751230), (396, 709495), (491, 572220), (495, 567596), (510, 550902), (561, 500820), (578, 486090), (612, 459085), (660, 425697), (748, 375615), (765, 367268), (867, 324060), (935, 300492), (982, 286110), (990, 283798), (1020, 275451), (1122, 250410), (1156, 243045), (1445, 194436), (1473, 190740), (1530, 183634), (1683, 166940), (1734, 162030), (1870, 150246), (1964, 143055), (1980, 141899), (2244, 125205), (2455, 114444), (2601, 108020), (2805, 100164), (2890, 97218), (2946, 95370), (3060, 91817), (3179, 88380), (3366, 83470), (3468, 81015), (3740, 75123), (4335, 64812), (4419, 63580), (4910, 57222), (5202, 54010), (5401, 52020), (5610, 50082), (5780, 48609), (5892, 47685), (6358, 44190), (6732, 41735), (7365, 38148), (8347, 33660), (8415, 33388), (8670, 32406), (8838, 31790), (9537, 29460), (9820, 28611), (10404, 27005), (10802, 26010), (11220, 25041), (12716, 22095), (13005, 21604), (14730, 19074), (15895, 17676), (16203, 17340), (16694, 16830)]