8247720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1$

素因数の和:355

約数の個数: 128

約数和(自身を含む): 28304640

約数和(自身を除く): 20056920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 20, 24, 26, 30, 34, 39, 40, 51, 52, 60, 65, 68, 78, 85, 102, 104, 120, 130, 136, 156, 170, 195, 204, 221, 255, 260, 311, 312, 340, 390, 408, 442, 510, 520, 622, 663, 680, 780, 884, 933, 1020, 1105, 1244, 1326, 1555, 1560, 1768, 1866, 2040, 2210, 2488, 2652, 3110, 3315, 3732, 4043, 4420, 4665, 5287, 5304, 6220, 6630, 7464, 8086, 8840, 9330, 10574, 12129, 12440, 13260, 15861, 16172, 18660, 20215, 21148, 24258, 26435, 26520, 31722, 32344, 37320, 40430, 42296, 48516, 52870, 60645, 63444, 68731, 79305, 80860, 97032, 105740, 121290, 126888, 137462, 158610, 161720, 206193, 211480, 242580, 274924, 317220, 343655, 412386, 485160, 549848, 634440, 687310, 824772, 1030965, 1374620, 1649544, 2061930, 2749240, 4123860, 8247720]

約数ペア:

[(1, 8247720), (2, 4123860), (3, 2749240), (4, 2061930), (5, 1649544), (6, 1374620), (8, 1030965), (10, 824772), (12, 687310), (13, 634440), (15, 549848), (17, 485160), (20, 412386), (24, 343655), (26, 317220), (30, 274924), (34, 242580), (39, 211480), (40, 206193), (51, 161720), (52, 158610), (60, 137462), (65, 126888), (68, 121290), (78, 105740), (85, 97032), (102, 80860), (104, 79305), (120, 68731), (130, 63444), (136, 60645), (156, 52870), (170, 48516), (195, 42296), (204, 40430), (221, 37320), (255, 32344), (260, 31722), (311, 26520), (312, 26435), (340, 24258), (390, 21148), (408, 20215), (442, 18660), (510, 16172), (520, 15861), (622, 13260), (663, 12440), (680, 12129), (780, 10574), (884, 9330), (933, 8840), (1020, 8086), (1105, 7464), (1244, 6630), (1326, 6220), (1555, 5304), (1560, 5287), (1768, 4665), (1866, 4420), (2040, 4043), (2210, 3732), (2488, 3315), (2652, 3110)]