21244080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{619}}^1$

素因数の和:659

約数の個数: 160

約数和(自身を含む): 77495040

約数和(自身を除く): 56250960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 16, 20, 22, 24, 26, 30, 33, 39, 40, 44, 48, 52, 55, 60, 65, 66, 78, 80, 88, 104, 110, 120, 130, 132, 143, 156, 165, 176, 195, 208, 220, 240, 260, 264, 286, 312, 330, 390, 429, 440, 520, 528, 572, 619, 624, 660, 715, 780, 858, 880, 1040, 1144, 1238, 1320, 1430, 1560, 1716, 1857, 2145, 2288, 2476, 2640, 2860, 3095, 3120, 3432, 3714, 4290, 4952, 5720, 6190, 6809, 6864, 7428, 8047, 8580, 9285, 9904, 11440, 12380, 13618, 14856, 16094, 17160, 18570, 20427, 24141, 24760, 27236, 29712, 32188, 34045, 34320, 37140, 40235, 40854, 48282, 49520, 54472, 64376, 68090, 74280, 80470, 81708, 88517, 96564, 102135, 108944, 120705, 128752, 136180, 148560, 160940, 163416, 177034, 193128, 204270, 241410, 265551, 272360, 321880, 326832, 354068, 386256, 408540, 442585, 482820, 531102, 544720, 643760, 708136, 817080, 885170, 965640, 1062204, 1327755, 1416272, 1634160, 1770340, 1931280, 2124408, 2655510, 3540680, 4248816, 5311020, 7081360, 10622040, 21244080]

約数ペア:

[(1, 21244080), (2, 10622040), (3, 7081360), (4, 5311020), (5, 4248816), (6, 3540680), (8, 2655510), (10, 2124408), (11, 1931280), (12, 1770340), (13, 1634160), (15, 1416272), (16, 1327755), (20, 1062204), (22, 965640), (24, 885170), (26, 817080), (30, 708136), (33, 643760), (39, 544720), (40, 531102), (44, 482820), (48, 442585), (52, 408540), (55, 386256), (60, 354068), (65, 326832), (66, 321880), (78, 272360), (80, 265551), (88, 241410), (104, 204270), (110, 193128), (120, 177034), (130, 163416), (132, 160940), (143, 148560), (156, 136180), (165, 128752), (176, 120705), (195, 108944), (208, 102135), (220, 96564), (240, 88517), (260, 81708), (264, 80470), (286, 74280), (312, 68090), (330, 64376), (390, 54472), (429, 49520), (440, 48282), (520, 40854), (528, 40235), (572, 37140), (619, 34320), (624, 34045), (660, 32188), (715, 29712), (780, 27236), (858, 24760), (880, 24141), (1040, 20427), (1144, 18570), (1238, 17160), (1320, 16094), (1430, 14856), (1560, 13618), (1716, 12380), (1857, 11440), (2145, 9904), (2288, 9285), (2476, 8580), (2640, 8047), (2860, 7428), (3095, 6864), (3120, 6809), (3432, 6190), (3714, 5720), (4290, 4952)]