661301300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:151

約数の個数: 216

約数和(自身を含む): 1706724096

約数和(自身を除く): 1045422796

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 31, 41, 43, 44, 50, 55, 62, 82, 86, 100, 110, 121, 124, 155, 164, 172, 205, 215, 220, 242, 275, 310, 341, 410, 430, 451, 473, 484, 550, 605, 620, 682, 775, 820, 860, 902, 946, 1025, 1075, 1100, 1210, 1271, 1333, 1364, 1550, 1705, 1763, 1804, 1892, 2050, 2150, 2255, 2365, 2420, 2542, 2666, 3025, 3100, 3410, 3526, 3751, 4100, 4300, 4510, 4730, 4961, 5084, 5203, 5332, 6050, 6355, 6665, 6820, 7052, 7502, 8525, 8815, 9020, 9460, 9922, 10406, 11275, 11825, 12100, 12710, 13330, 13981, 14663, 15004, 17050, 17630, 18755, 19393, 19844, 20812, 22550, 23650, 24805, 25420, 26015, 26660, 27962, 29326, 31775, 33325, 34100, 35260, 37510, 38786, 44075, 45100, 47300, 49610, 52030, 54653, 55924, 58652, 63550, 66650, 69905, 73315, 75020, 77572, 88150, 93775, 96965, 99220, 104060, 109306, 124025, 127100, 130075, 133300, 139810, 146630, 153791, 161293, 176300, 187550, 193930, 213323, 218612, 248050, 260150, 273265, 279620, 293260, 307582, 322586, 349525, 366575, 375100, 387860, 426646, 484825, 496100, 520300, 546530, 601183, 615164, 645172, 699050, 733150, 768955, 806465, 853292, 969650, 1066615, 1093060, 1202366, 1366325, 1398100, 1466300, 1537910, 1612930, 1939300, 2133230, 2404732, 2732650, 3005915, 3075820, 3225860, 3844775, 4032325, 4266460, 5333075, 5465300, 6011830, 6613013, 7689550, 8064650, 10666150, 12023660, 13226026, 15029575, 15379100, 16129300, 21332300, 26452052, 30059150, 33065065, 60118300, 66130130, 132260260, 165325325, 330650650, 661301300]

約数ペア:

[(1, 661301300), (2, 330650650), (4, 165325325), (5, 132260260), (10, 66130130), (11, 60118300), (20, 33065065), (22, 30059150), (25, 26452052), (31, 21332300), (41, 16129300), (43, 15379100), (44, 15029575), (50, 13226026), (55, 12023660), (62, 10666150), (82, 8064650), (86, 7689550), (100, 6613013), (110, 6011830), (121, 5465300), (124, 5333075), (155, 4266460), (164, 4032325), (172, 3844775), (205, 3225860), (215, 3075820), (220, 3005915), (242, 2732650), (275, 2404732), (310, 2133230), (341, 1939300), (410, 1612930), (430, 1537910), (451, 1466300), (473, 1398100), (484, 1366325), (550, 1202366), (605, 1093060), (620, 1066615), (682, 969650), (775, 853292), (820, 806465), (860, 768955), (902, 733150), (946, 699050), (1025, 645172), (1075, 615164), (1100, 601183), (1210, 546530), (1271, 520300), (1333, 496100), (1364, 484825), (1550, 426646), (1705, 387860), (1763, 375100), (1804, 366575), (1892, 349525), (2050, 322586), (2150, 307582), (2255, 293260), (2365, 279620), (2420, 273265), (2542, 260150), (2666, 248050), (3025, 218612), (3100, 213323), (3410, 193930), (3526, 187550), (3751, 176300), (4100, 161293), (4300, 153791), (4510, 146630), (4730, 139810), (4961, 133300), (5084, 130075), (5203, 127100), (5332, 124025), (6050, 109306), (6355, 104060), (6665, 99220), (6820, 96965), (7052, 93775), (7502, 88150), (8525, 77572), (8815, 75020), (9020, 73315), (9460, 69905), (9922, 66650), (10406, 63550), (11275, 58652), (11825, 55924), (12100, 54653), (12710, 52030), (13330, 49610), (13981, 47300), (14663, 45100), (15004, 44075), (17050, 38786), (17630, 37510), (18755, 35260), (19393, 34100), (19844, 33325), (20812, 31775), (22550, 29326), (23650, 27962), (24805, 26660), (25420, 26015)]