248891220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{499}}^1$

素因数の和:694

約数の個数: 144

約数和(自身を含む): 805896000

約数和(自身を除く): 557004780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 163, 170, 180, 204, 255, 306, 326, 340, 489, 499, 510, 612, 652, 765, 815, 978, 998, 1020, 1467, 1497, 1530, 1630, 1956, 1996, 2445, 2495, 2771, 2934, 2994, 3060, 3260, 4491, 4890, 4990, 5542, 5868, 5988, 7335, 7485, 8313, 8483, 8982, 9780, 9980, 11084, 13855, 14670, 14970, 16626, 16966, 17964, 22455, 24939, 25449, 27710, 29340, 29940, 33252, 33932, 41565, 42415, 44910, 49878, 50898, 55420, 76347, 81337, 83130, 84830, 89820, 99756, 101796, 124695, 127245, 152694, 162674, 166260, 169660, 244011, 249390, 254490, 305388, 325348, 381735, 406685, 488022, 498780, 508980, 732033, 763470, 813370, 976044, 1220055, 1382729, 1464066, 1526940, 1626740, 2440110, 2765458, 2928132, 3660165, 4148187, 4880220, 5530916, 6913645, 7320330, 8296374, 12444561, 13827290, 14640660, 16592748, 20740935, 24889122, 27654580, 41481870, 49778244, 62222805, 82963740, 124445610, 248891220]

約数ペア:

[(1, 248891220), (2, 124445610), (3, 82963740), (4, 62222805), (5, 49778244), (6, 41481870), (9, 27654580), (10, 24889122), (12, 20740935), (15, 16592748), (17, 14640660), (18, 13827290), (20, 12444561), (30, 8296374), (34, 7320330), (36, 6913645), (45, 5530916), (51, 4880220), (60, 4148187), (68, 3660165), (85, 2928132), (90, 2765458), (102, 2440110), (153, 1626740), (163, 1526940), (170, 1464066), (180, 1382729), (204, 1220055), (255, 976044), (306, 813370), (326, 763470), (340, 732033), (489, 508980), (499, 498780), (510, 488022), (612, 406685), (652, 381735), (765, 325348), (815, 305388), (978, 254490), (998, 249390), (1020, 244011), (1467, 169660), (1497, 166260), (1530, 162674), (1630, 152694), (1956, 127245), (1996, 124695), (2445, 101796), (2495, 99756), (2771, 89820), (2934, 84830), (2994, 83130), (3060, 81337), (3260, 76347), (4491, 55420), (4890, 50898), (4990, 49878), (5542, 44910), (5868, 42415), (5988, 41565), (7335, 33932), (7485, 33252), (8313, 29940), (8483, 29340), (8982, 27710), (9780, 25449), (9980, 24939), (11084, 22455), (13855, 17964), (14670, 16966), (14970, 16626)]