128289420

素因数分解:

$2^2\times 3^7\times 5^1\times 7^1\times {\mathrm{419}}^1$

素因数の和:456

約数の個数: 192

約数和(自身を含む): 462873600

約数和(自身を除く): 334584180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 243, 252, 270, 315, 324, 378, 405, 419, 420, 486, 540, 567, 630, 729, 756, 810, 838, 945, 972, 1134, 1215, 1257, 1260, 1458, 1620, 1676, 1701, 1890, 2095, 2187, 2268, 2430, 2514, 2835, 2916, 2933, 3402, 3645, 3771, 3780, 4190, 4374, 4860, 5028, 5103, 5670, 5866, 6285, 6804, 7290, 7542, 8380, 8505, 8748, 8799, 10206, 10935, 11313, 11340, 11732, 12570, 14580, 14665, 15084, 15309, 17010, 17598, 18855, 20412, 21870, 22626, 25140, 25515, 26397, 29330, 30618, 33939, 34020, 35196, 37710, 43740, 43995, 45252, 51030, 52794, 56565, 58660, 61236, 67878, 75420, 76545, 79191, 87990, 101817, 102060, 105588, 113130, 131985, 135756, 153090, 158382, 169695, 175980, 203634, 226260, 237573, 263970, 305451, 306180, 316764, 339390, 395955, 407268, 475146, 509085, 527940, 610902, 678780, 712719, 791910, 916353, 950292, 1018170, 1187865, 1221804, 1425438, 1527255, 1583820, 1832706, 2036340, 2138157, 2375730, 2850876, 3054510, 3563595, 3665412, 4276314, 4581765, 4751460, 6109020, 6414471, 7127190, 8552628, 9163530, 10690785, 12828942, 14254380, 18327060, 21381570, 25657884, 32072355, 42763140, 64144710, 128289420]

約数ペア:

[(1, 128289420), (2, 64144710), (3, 42763140), (4, 32072355), (5, 25657884), (6, 21381570), (7, 18327060), (9, 14254380), (10, 12828942), (12, 10690785), (14, 9163530), (15, 8552628), (18, 7127190), (20, 6414471), (21, 6109020), (27, 4751460), (28, 4581765), (30, 4276314), (35, 3665412), (36, 3563595), (42, 3054510), (45, 2850876), (54, 2375730), (60, 2138157), (63, 2036340), (70, 1832706), (81, 1583820), (84, 1527255), (90, 1425438), (105, 1221804), (108, 1187865), (126, 1018170), (135, 950292), (140, 916353), (162, 791910), (180, 712719), (189, 678780), (210, 610902), (243, 527940), (252, 509085), (270, 475146), (315, 407268), (324, 395955), (378, 339390), (405, 316764), (419, 306180), (420, 305451), (486, 263970), (540, 237573), (567, 226260), (630, 203634), (729, 175980), (756, 169695), (810, 158382), (838, 153090), (945, 135756), (972, 131985), (1134, 113130), (1215, 105588), (1257, 102060), (1260, 101817), (1458, 87990), (1620, 79191), (1676, 76545), (1701, 75420), (1890, 67878), (2095, 61236), (2187, 58660), (2268, 56565), (2430, 52794), (2514, 51030), (2835, 45252), (2916, 43995), (2933, 43740), (3402, 37710), (3645, 35196), (3771, 34020), (3780, 33939), (4190, 30618), (4374, 29330), (4860, 26397), (5028, 25515), (5103, 25140), (5670, 22626), (5866, 21870), (6285, 20412), (6804, 18855), (7290, 17598), (7542, 17010), (8380, 15309), (8505, 15084), (8748, 14665), (8799, 14580), (10206, 12570), (10935, 11732), (11313, 11340)]