80028760

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{307}}^1$

素因数の和:358

約数の個数: 128

約数和(自身を含む): 221760000

約数和(自身を除く): 141731240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 196, 245, 266, 280, 307, 343, 380, 392, 490, 532, 614, 665, 686, 760, 931, 980, 1064, 1228, 1330, 1372, 1535, 1715, 1862, 1960, 2149, 2456, 2660, 2744, 3070, 3430, 3724, 4298, 4655, 5320, 5833, 6140, 6517, 6860, 7448, 8596, 9310, 10745, 11666, 12280, 13034, 13720, 15043, 17192, 18620, 21490, 23332, 26068, 29165, 30086, 32585, 37240, 40831, 42980, 46664, 52136, 58330, 60172, 65170, 75215, 81662, 85960, 105301, 116660, 120344, 130340, 150430, 163324, 204155, 210602, 233320, 260680, 285817, 300860, 326648, 408310, 421204, 526505, 571634, 601720, 816620, 842408, 1053010, 1143268, 1429085, 1633240, 2000719, 2106020, 2286536, 2858170, 4001438, 4212040, 5716340, 8002876, 10003595, 11432680, 16005752, 20007190, 40014380, 80028760]

約数ペア:

[(1, 80028760), (2, 40014380), (4, 20007190), (5, 16005752), (7, 11432680), (8, 10003595), (10, 8002876), (14, 5716340), (19, 4212040), (20, 4001438), (28, 2858170), (35, 2286536), (38, 2106020), (40, 2000719), (49, 1633240), (56, 1429085), (70, 1143268), (76, 1053010), (95, 842408), (98, 816620), (133, 601720), (140, 571634), (152, 526505), (190, 421204), (196, 408310), (245, 326648), (266, 300860), (280, 285817), (307, 260680), (343, 233320), (380, 210602), (392, 204155), (490, 163324), (532, 150430), (614, 130340), (665, 120344), (686, 116660), (760, 105301), (931, 85960), (980, 81662), (1064, 75215), (1228, 65170), (1330, 60172), (1372, 58330), (1535, 52136), (1715, 46664), (1862, 42980), (1960, 40831), (2149, 37240), (2456, 32585), (2660, 30086), (2744, 29165), (3070, 26068), (3430, 23332), (3724, 21490), (4298, 18620), (4655, 17192), (5320, 15043), (5833, 13720), (6140, 13034), (6517, 12280), (6860, 11666), (7448, 10745), (8596, 9310)]