19421820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{577}}^1$

素因数の和:620

約数の個数: 144

約数和(自身を含む): 68167008

約数和(自身を除く): 48745188

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, 306, 330, 340, 374, 396, 495, 510, 561, 577, 612, 660, 748, 765, 935, 990, 1020, 1122, 1154, 1530, 1683, 1731, 1870, 1980, 2244, 2308, 2805, 2885, 3060, 3366, 3462, 3740, 5193, 5610, 5770, 6347, 6732, 6924, 8415, 8655, 9809, 10386, 11220, 11540, 12694, 16830, 17310, 19041, 19618, 20772, 25388, 25965, 29427, 31735, 33660, 34620, 38082, 39236, 49045, 51930, 57123, 58854, 63470, 76164, 88281, 95205, 98090, 103860, 107899, 114246, 117708, 126940, 147135, 176562, 190410, 196180, 215798, 228492, 285615, 294270, 323697, 353124, 380820, 431596, 441405, 539495, 571230, 588540, 647394, 882810, 971091, 1078990, 1142460, 1294788, 1618485, 1765620, 1942182, 2157980, 3236970, 3884364, 4855455, 6473940, 9710910, 19421820]

約数ペア:

[(1, 19421820), (2, 9710910), (3, 6473940), (4, 4855455), (5, 3884364), (6, 3236970), (9, 2157980), (10, 1942182), (11, 1765620), (12, 1618485), (15, 1294788), (17, 1142460), (18, 1078990), (20, 971091), (22, 882810), (30, 647394), (33, 588540), (34, 571230), (36, 539495), (44, 441405), (45, 431596), (51, 380820), (55, 353124), (60, 323697), (66, 294270), (68, 285615), (85, 228492), (90, 215798), (99, 196180), (102, 190410), (110, 176562), (132, 147135), (153, 126940), (165, 117708), (170, 114246), (180, 107899), (187, 103860), (198, 98090), (204, 95205), (220, 88281), (255, 76164), (306, 63470), (330, 58854), (340, 57123), (374, 51930), (396, 49045), (495, 39236), (510, 38082), (561, 34620), (577, 33660), (612, 31735), (660, 29427), (748, 25965), (765, 25388), (935, 20772), (990, 19618), (1020, 19041), (1122, 17310), (1154, 16830), (1530, 12694), (1683, 11540), (1731, 11220), (1870, 10386), (1980, 9809), (2244, 8655), (2308, 8415), (2805, 6924), (2885, 6732), (3060, 6347), (3366, 5770), (3462, 5610), (3740, 5193)]