213957040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^2$

素因数の和:120

約数の個数: 180

約数和(自身を含む): 589556016

約数和(自身を除く): 375598976

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 31, 40, 44, 46, 55, 62, 80, 88, 92, 110, 115, 121, 124, 155, 176, 184, 220, 230, 242, 248, 253, 310, 341, 368, 440, 460, 484, 496, 506, 605, 620, 682, 713, 880, 920, 961, 968, 1012, 1210, 1240, 1265, 1364, 1426, 1705, 1840, 1922, 1936, 2024, 2420, 2480, 2530, 2728, 2783, 2852, 3410, 3565, 3751, 3844, 4048, 4805, 4840, 5060, 5456, 5566, 5704, 6820, 7130, 7502, 7688, 7843, 9610, 9680, 10120, 10571, 11132, 11408, 13640, 13915, 14260, 15004, 15376, 15686, 18755, 19220, 20240, 21142, 22103, 22264, 27280, 27830, 28520, 30008, 31372, 37510, 38440, 39215, 42284, 44206, 44528, 52855, 55660, 57040, 60016, 62744, 75020, 76880, 78430, 84568, 86273, 88412, 105710, 110515, 111320, 116281, 125488, 150040, 156860, 169136, 172546, 176824, 211420, 221030, 222640, 232562, 243133, 300080, 313720, 345092, 353648, 422840, 431365, 442060, 465124, 486266, 581405, 627440, 690184, 845680, 862730, 884120, 930248, 972532, 1162810, 1215665, 1380368, 1725460, 1768240, 1860496, 1945064, 2325620, 2431330, 2674463, 3450920, 3890128, 4651240, 4862660, 5348926, 6901840, 9302480, 9725320, 10697852, 13372315, 19450640, 21395704, 26744630, 42791408, 53489260, 106978520, 213957040]

約数ペア:

[(1, 213957040), (2, 106978520), (4, 53489260), (5, 42791408), (8, 26744630), (10, 21395704), (11, 19450640), (16, 13372315), (20, 10697852), (22, 9725320), (23, 9302480), (31, 6901840), (40, 5348926), (44, 4862660), (46, 4651240), (55, 3890128), (62, 3450920), (80, 2674463), (88, 2431330), (92, 2325620), (110, 1945064), (115, 1860496), (121, 1768240), (124, 1725460), (155, 1380368), (176, 1215665), (184, 1162810), (220, 972532), (230, 930248), (242, 884120), (248, 862730), (253, 845680), (310, 690184), (341, 627440), (368, 581405), (440, 486266), (460, 465124), (484, 442060), (496, 431365), (506, 422840), (605, 353648), (620, 345092), (682, 313720), (713, 300080), (880, 243133), (920, 232562), (961, 222640), (968, 221030), (1012, 211420), (1210, 176824), (1240, 172546), (1265, 169136), (1364, 156860), (1426, 150040), (1705, 125488), (1840, 116281), (1922, 111320), (1936, 110515), (2024, 105710), (2420, 88412), (2480, 86273), (2530, 84568), (2728, 78430), (2783, 76880), (2852, 75020), (3410, 62744), (3565, 60016), (3751, 57040), (3844, 55660), (4048, 52855), (4805, 44528), (4840, 44206), (5060, 42284), (5456, 39215), (5566, 38440), (5704, 37510), (6820, 31372), (7130, 30008), (7502, 28520), (7688, 27830), (7843, 27280), (9610, 22264), (9680, 22103), (10120, 21142), (10571, 20240), (11132, 19220), (11408, 18755), (13640, 15686), (13915, 15376), (14260, 15004)]