311948840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{307}}^1$

素因数の和:535

約数の個数: 128

約数和(自身を含む): 851558400

約数和(自身を除く): 539609560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 191, 266, 280, 307, 380, 382, 532, 614, 665, 760, 764, 955, 1064, 1228, 1330, 1337, 1528, 1535, 1910, 2149, 2456, 2660, 2674, 3070, 3629, 3820, 4298, 5320, 5348, 5833, 6140, 6685, 7258, 7640, 8596, 10696, 10745, 11666, 12280, 13370, 14516, 17192, 18145, 21490, 23332, 25403, 26740, 29032, 29165, 36290, 40831, 42980, 46664, 50806, 53480, 58330, 58637, 72580, 81662, 85960, 101612, 116660, 117274, 127015, 145160, 163324, 203224, 204155, 233320, 234548, 254030, 293185, 326648, 408310, 410459, 469096, 508060, 586370, 816620, 820918, 1016120, 1114103, 1172740, 1633240, 1641836, 2052295, 2228206, 2345480, 3283672, 4104590, 4456412, 5570515, 7798721, 8209180, 8912824, 11141030, 15597442, 16418360, 22282060, 31194884, 38993605, 44564120, 62389768, 77987210, 155974420, 311948840]

約数ペア:

[(1, 311948840), (2, 155974420), (4, 77987210), (5, 62389768), (7, 44564120), (8, 38993605), (10, 31194884), (14, 22282060), (19, 16418360), (20, 15597442), (28, 11141030), (35, 8912824), (38, 8209180), (40, 7798721), (56, 5570515), (70, 4456412), (76, 4104590), (95, 3283672), (133, 2345480), (140, 2228206), (152, 2052295), (190, 1641836), (191, 1633240), (266, 1172740), (280, 1114103), (307, 1016120), (380, 820918), (382, 816620), (532, 586370), (614, 508060), (665, 469096), (760, 410459), (764, 408310), (955, 326648), (1064, 293185), (1228, 254030), (1330, 234548), (1337, 233320), (1528, 204155), (1535, 203224), (1910, 163324), (2149, 145160), (2456, 127015), (2660, 117274), (2674, 116660), (3070, 101612), (3629, 85960), (3820, 81662), (4298, 72580), (5320, 58637), (5348, 58330), (5833, 53480), (6140, 50806), (6685, 46664), (7258, 42980), (7640, 40831), (8596, 36290), (10696, 29165), (10745, 29032), (11666, 26740), (12280, 25403), (13370, 23332), (14516, 21490), (17192, 18145)]