320180640

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{3947}}^1$

素因数の和:3991

約数の個数: 144

約数和(自身を含む): 1092395808

約数和(自身を除く): 772215168

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 169, 195, 208, 240, 260, 312, 338, 390, 416, 480, 507, 520, 624, 676, 780, 845, 1014, 1040, 1248, 1352, 1560, 1690, 2028, 2080, 2535, 2704, 3120, 3380, 3947, 4056, 5070, 5408, 6240, 6760, 7894, 8112, 10140, 11841, 13520, 15788, 16224, 19735, 20280, 23682, 27040, 31576, 39470, 40560, 47364, 51311, 59205, 63152, 78940, 81120, 94728, 102622, 118410, 126304, 153933, 157880, 189456, 205244, 236820, 256555, 307866, 315760, 378912, 410488, 473640, 513110, 615732, 631520, 667043, 769665, 820976, 947280, 1026220, 1231464, 1334086, 1539330, 1641952, 1894560, 2001129, 2052440, 2462928, 2668172, 3078660, 3335215, 4002258, 4104880, 4925856, 5336344, 6157320, 6670430, 8004516, 8209760, 10005645, 10672688, 12314640, 13340860, 16009032, 20011290, 21345376, 24629280, 26681720, 32018064, 40022580, 53363440, 64036128, 80045160, 106726880, 160090320, 320180640]

約数ペア:

[(1, 320180640), (2, 160090320), (3, 106726880), (4, 80045160), (5, 64036128), (6, 53363440), (8, 40022580), (10, 32018064), (12, 26681720), (13, 24629280), (15, 21345376), (16, 20011290), (20, 16009032), (24, 13340860), (26, 12314640), (30, 10672688), (32, 10005645), (39, 8209760), (40, 8004516), (48, 6670430), (52, 6157320), (60, 5336344), (65, 4925856), (78, 4104880), (80, 4002258), (96, 3335215), (104, 3078660), (120, 2668172), (130, 2462928), (156, 2052440), (160, 2001129), (169, 1894560), (195, 1641952), (208, 1539330), (240, 1334086), (260, 1231464), (312, 1026220), (338, 947280), (390, 820976), (416, 769665), (480, 667043), (507, 631520), (520, 615732), (624, 513110), (676, 473640), (780, 410488), (845, 378912), (1014, 315760), (1040, 307866), (1248, 256555), (1352, 236820), (1560, 205244), (1690, 189456), (2028, 157880), (2080, 153933), (2535, 126304), (2704, 118410), (3120, 102622), (3380, 94728), (3947, 81120), (4056, 78940), (5070, 63152), (5408, 59205), (6240, 51311), (6760, 47364), (7894, 40560), (8112, 39470), (10140, 31576), (11841, 27040), (13520, 23682), (15788, 20280), (16224, 19735)]